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Information on EC 3.4.24.26 - pseudolysin
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3.4.24.26 pseudolysinSpecify your search results
Word Map
- 3.4.24.26
- thermolysin
- metalloproteinases
- collagenase
- metalloprotease
-
3.4.24.4
- elastin
- gelatinase
- elastases
- phosphoramidon
-
pseudomonal
- stromelysin
-
thermolysin-like
- metalloendopeptidase
- medicine
- thermoproteolyticus
- aureolysin
- vibriolysin
-
intrastromal
- industry
- nutrition
- biotechnology
- synthesis
- pharmacology
- diagnostics
The enzyme appears in viruses and cellular organisms
Reaction Schemes
Hydrolysis of proteins including elastin, collagen types III and IV, fibronectin and immunoglobulin A, generally with bulky hydrophobic group at P1'. Insulin B chain cleavage pattern identical to that of thermolysin, but specificity differs in other respects
Synonyms
pseudomonas aeruginosa elastase, pseudolysin, neutral metalloproteinase, pseudomonas elastase, elastase b, pseudomonas protease, aeruginolysin, elastolytic metalloproteinase, lasb protease, pseudomonas aeruginosa small protease, 
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SYNONYM 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
A2 elastase
ealastase LasB
EC 3.4.24.4
-
-
formerly
-
elastase
elastase B
LasB
LasB protease
Neutral metalloproteinase
-
-
-
-
PAE
PASP
Pseudomonas aeruginosa elastase
Pseudomonas aeruginosa neutral metalloproteinase
-
-
-
-
Pseudomonas aeruginosa small protease
Pseudomonas elastase
additional information
PAE is a metalloprotease of the M4 peptidase family
elastase
-
-
-
-
Pseudomonas aeruginosa elastase
-
-
Pseudomonas aeruginosa elastase
-
Pseudomonas elastase
-
-
-
-
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REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
Hydrolysis of proteins including elastin, collagen types III and IV, fibronectin and immunoglobulin A, generally with bulky hydrophobic group at P1'. Insulin B chain cleavage pattern identical to that of thermolysin, but specificity differs in other respects
-
-
-
-
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
hydrolysis of peptide bond
-
-
-
-
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CAS REGISTRY NUMBER
COMMENTARY
171715-23-4
-
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SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
2-Aminobenzoyl-Ala-Gly-Leu-Ala 4-nitrobenzylamide + H2O
2-Aminobenzoyl-Ala-Gly + Leu-Ala 4-nitrobenzylamide
2-aminobenzoyl-Ala-Gly-Leu-Ala-4-nitrobenzylamide + H2O
2-aminobenzoyl-Ala-Gly + Leu-Ala-4-nitrobenzylamide
Vibrio cholerae serotype O1
-
-
-
-
?
2-aminobenzoyl-Ala-Gly-Leu-Ala-4-nitrobenzylamide + H2O
?
25°C, pH 7.4
-
-
?
3-(2-furyl)acryloyl-glycyl-L-phenylalanyl-L-phenylalanine + H2O
L-phenylalanyl-L-phenylalanine + 3-(2-furyl)acryloyl-glycine
at 37°C, pH 7.3
-
-
?
7-methoxycoumarin-4-yl-acetyl-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys-(2,4-dinitrophenyl)-OH
?
-
-
-
-
?
AAF-7-amido-4-methylcoumarin + H2O
AAF + 7-amino-4-methylcoumarin
-
-
-
-
?
Ac-DEVD-7-amido-4-methylcoumarin + H2O
Ac-DEVD + 7-amino-4-methylcoumarin
-
-
-
-
?
alpha1-proteinase inhibitor + H2O
?
25°C, pH 7.4, cleavage occurs at the Pro357-Met358 bond (wild-type and recombinant Met358 inhibitor) and at the Pro357-Leu358 bond (recombinant mutant M358L inhibitor)
-
-
?
Boc-GKR-7-amido-4-methylcoumarin + H2O
Boc-GKR + 7-amino-4-methylcoumarin
-
-
-
-
?
Boc-QAR-7-amido-4-methylcoumarin + H2O
Boc-QAR + 7-amino-4-methylcoumarin
-
-
-
-
?
Boc-VLK-7-amido-4-methylcoumarin + H2O
Boc-VLK + 7-amino-4-methylcoumarin
-
-
-
-
?
Boc-VPR-7-amido-4-methylcoumarin + H2O
Boc-VPR + 7-amino-4-methylcoumarin
-
-
-
-
?
carbobenzooxydialanine-leucylalaninamide + H2O
?
30°C, pH 8.6
-
-
?
carbobenzooxydialanine-phenylalanylalaninamide + H2O
?
30°C, pH 8.6
-
-
?
carbobenzooxydialanine-tyrosylalaninamide + H2O
?
30°C, pH 8.6
-
-
?
cartilage + H2O
?
major components proteoglycans and collagen
-
-
?
eggshell membrane + H2O
Val-Leu-Pro-Pro + (X)-Val-Pro-Pro + Trp + ?
-
-
-
-
?
human gamma-interferon + H2O
fragments of human gamma-interferon
-
-
-
?
interleukin-8 + H2O
?
-
rapid processing to a 72 amino acid form, further degradation is slow
-
-
?
methyl-O-Suc-AAPV-7-amido-4-methylcoumarin + H2O
methyl-O-Suc-AAPV + 7-amino-4-methylcoumarin
-
-
-
-
?
monocyte-derived alpha1-antitrypsin + H2O
?
37°C
51-kD polypeptide
-
?
myeloma IgA2-lamda of A2m(2) allotype + H2O
?
-
predominantly polymeric, 37°C
-
-
?
N-chlorosuccinimide-oxidized inhibitor + H2O
?
25°C, pH 7.4, cleavage occurs between Glu354 and Ala355
-
-
?
N-succinyl-Ala-Ala-Ala-4-nitroanilide + H2O
N-succinyl-Ala-Ala-Ala + 4-nitroaniline
-
-
-
-
?
PAR2 + H2O
?
-
i.e. proteinase-activated receptor 2, enzyme cleaves the N-terminal domain of PAR2 from the cell surface without triggering receptor endocytosis as trypsin does. Cleavage does not activate PAR2, but disarms the recptor for subsequent activation by trypsin
-
?
PFR-7-amido-4-methylcoumarin + H2O
PFR + 7-amino-4-methylcoumarin
-
-
-
-
?
proteinase-activated receptor 2 + H2O
?
the enzyme cleaves proteinase-activated receptor 2 to remove the extracellular Flag epitope
-
-
?
Suc-AAF-7-amido-4-methylcoumarin + H2O
Suc-AAF + 7-amino-4-methylcoumarin
-
-
-
-
?
Suc-AFK-7-amido-4-methylcoumarin + H2O
Suc-AFK + 7-amino-4-methylcoumarin
-
-
-
-
?
Suc-GPLGP-7-amido-4-methylcoumarin + H2O
Suc-GPLGP + 7-amino-4-methylcoumarin
-
-
-
-
?
Suc-IIW-7-amido-4-methylcoumarin + H2O
Suc-IIW + 7-amino-4-methylcoumarin
-
-
-
-
?
Suc-LLVY-7-amido-4-methylcoumarin + H2O
Suc-LLVY + 7-amino-4-methylcoumarin
-
-
-
-
?
tear fluid surfactant protein D + H2O
35000 Da fragment of tear fluid surfactant protein D + ?
-
purified elastase degrades tear fluid surfactant protein D in vitro and in vivo
-
-
?
Z-AAN-7-amido-4-methylcoumarin + H2O
Z-AAN + 7-amino-4-methylcoumarin
-
-
-
-
?
Z-GAH-7-amido-4-methylcoumarin + H2O
Z-GAH + 7-amino-4-methylcoumarin
-
-
-
-
?
Z-GAM-7-amido-4-methylcoumarin + H2O
Z-GAM + 7-amino-4-methylcoumarin
-
-
-
-
?
Z-GGL-7-amido-4-methylcoumarin + H2O
Z-GGL + 7-amino-4-methylcoumarin
-
-
-
-
?
Z-GGR-7-amido-4-methylcoumarin + H2O
Z-GGR + 7-amino-4-methylcoumarin
-
-
-
-
?
Z-LLE-7-amido-4-methylcoumarin + H2O
Z-LLE + 7-amino-4-methylcoumarin
-
-
-
-
?
Z-RLRGG-7-amido-4-methylcoumarin + H2O
Z-RLRGG + 7-amino-4-methylcoumarin
-
-
-
-
?
2-Aminobenzoyl-Ala-Gly-Leu-Ala 4-nitrobenzylamide + H2O
2-Aminobenzoyl-Ala-Gly + Leu-Ala 4-nitrobenzylamide
-
-
-
-
?
2-Aminobenzoyl-Ala-Gly-Leu-Ala 4-nitrobenzylamide + H2O
2-Aminobenzoyl-Ala-Gly + Leu-Ala 4-nitrobenzylamide
-
-
-
?
azocasein + H2O
?
proteolytic activity is 8 to 9fold lower than in the wild-type strain
-
-
?
eggshell-membrane + H2O
?
WP_084338031.1
the enzyme can be applied to obtain bioactive soluble peptides from eggshell-membrane
-
-
?
eggshell-membrane + H2O
?
WP_084338031.1
the enzyme can be applied to obtain bioactive soluble peptides from eggshell-membrane
-
-
?
elastase propeptide + H2O
elastase + ?
-
autocatalytically cleaved
-
?
elastase propeptide + H2O
elastase + ?
Pseudomonas aeruginosa FRD740
-
autocatalytically cleaved
-
?
Elastin + H2O
?
pseudolysin bound to bovine elastin fibers and preferred to attack peptide bonds with hydrophobic residues at the P1 and P1' positions in the hydrophobic domains of elastin
-
-
?
elastin Congo red + H2O
?
elastolytic activity is 14fold lower than in the wild-type strain
-
-
?
elastin Congo red + H2O
?
elastolytic activity is 20fold lower than in the wild-type strain
-
-
?
flagellin + H2O
?
the enzyme is capable of degrading exogenous flagellin under calcium-replete conditions and prevents flagellin-mediated immune recognition
-
-
?
flagellin + H2O
?
the enzyme is capable of degrading exogenous flagellin under calcium-replete conditions and prevents flagellin-mediated immune recognition
-
-
?
furylacryloyl-Gly-Leu-NH2 + H2O
furylacryloyl-Gly + Leu-NH2
-
poor substrate
-
?
furylacryloyl-Gly-Leu-NH2 + H2O
furylacryloyl-Gly + Leu-NH2
pH 7.5, 23-25°C
-
-
?
furylacryloyl-glycyl-L-leucyl-L-alanine + H2O
furylacryloyl-glycine + L-leucyl-L-alanine
25°C, pH 7.5
-
-
?
furylacryloyl-glycyl-L-leucyl-L-alanine + H2O
furylacryloyl-glycine + L-leucyl-L-alanine
pH 7.5, 25°C
-
-
?
human thrombin + H2O
?
digestion of thrombin by Pseudomonas aeruginosa elastase leads to the release of the C-terminal thrombin-derived peptide FYT21, which inhibits pro-inflammatory responses to several pathogen-associated molecular patterns in vitro and in vivo by preventing toll-like receptor dimerization and subsequent activation of down-stream signalling pathways the enzyme cleaves a C-terminal peptide from human thrombin that inhibits host inflammatory responses
-
-
?
additional information
?
-
-
pseudolysin eliminates epitopes recognized by the R5 antibody, while those detected by the G12 antibody remain intact, despite destruction of the nearby major T-cell epitope QPQLPY
-
-
?
additional information
?
-
Acinetobacter junii FA10
-
pseudolysin eliminates epitopes recognized by the R5 antibody, while those detected by the G12 antibody remain intact, despite destruction of the nearby major T-cell epitope QPQLPY
-
-
?
additional information
?
-
-
with synthetic substrates of the general structure benzyloxycarbonyl-Phe-Xaa-Ala, the Phe-Xaa bond is cleaved, the decreasing order of preference for Xaa is as follows: Phe, Leu, Tyr, Val, Ile
-
-
?
additional information
?
-
-
specificity against aromatic or hydrophobic amino acid residues at the amino-side of the splitting point
-
-
?
additional information
?
-
-
probably responsible for the tissue destruction observed during pulmonary and corneal infections by the pathogen organism Pseudomonas aeruginosa
-
-
?
additional information
?
-
-
no activity with dabsyl-Leu-Gly-Gly-Gly-Ala-edans
-
-
?
additional information
?
-
key catalytic residues and residues at the S1 and S'1 binding subsites, reaction mechanism, overview
-
-
?
additional information
?
-
-
key catalytic residues and residues at the S1 and S'1 binding subsites, reaction mechanism, overview
-
-
?
additional information
?
-
-
enzyme prefers Ser at position P1, Lys at P2 and hydropobic amino acids at the P1' and P2' positions
-
-
?
additional information
?
-
-
large exopeptidase LepA activates nuclear factor kappa-kB-driven promoter through human protease activated receptors PAR-1, -2 or -4 and cleaves the peptides corresponding to the tethered ligand region of human PAR-1, -2 and -4 at a specific site with exposure of their tethered ligands
-
-
?
additional information
?
-
-
no substrate: N-succinyl-Ala-Ala-Ala-p-nitroanilide, N-succinyl-Ala-Pro-Ala-p-nitroanilide
-
-
?
additional information
?
-
-
non- and glycosylated isoforms of rPAE display similar kinetic parameters for hydrolyzing casein in aqueous medium, and when catalyzing bipeptide synthesis in 50% v/v DMSO, they exhibit identical substrate specificity and activity, and produce similar yields
-
-
?
additional information
?
-
-
the enzyme shows both hemolytic and hemorrhagic activities in vivo
-
-
?
additional information
?
-
-
enzyme prefers Ser at position P1, Lys at P2 and hydropobic amino acids at the P1' and P2' positions
-
-
?
additional information
?
-
-
no substrate: N-succinyl-Ala-Ala-Ala-p-nitroanilide, N-succinyl-Ala-Pro-Ala-p-nitroanilide
-
-
?
additional information
?
-
Pseudomonas aeruginosa ZuhP13
-
the enzyme shows both hemolytic and hemorrhagic activities in vivo
-
-
?
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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
human thrombin + H2O
?
digestion of thrombin by Pseudomonas aeruginosa elastase leads to the release of the C-terminal thrombin-derived peptide FYT21, which inhibits pro-inflammatory responses to several pathogen-associated molecular patterns in vitro and in vivo by preventing toll-like receptor dimerization and subsequent activation of down-stream signalling pathways the enzyme cleaves a C-terminal peptide from human thrombin that inhibits host inflammatory responses
-
-
?
PAR2 + H2O
?
-
i.e. proteinase-activated receptor 2, enzyme cleaves the N-terminal domain of PAR2 from the cell surface without triggering receptor endocytosis as trypsin does. Cleavage does not activate PAR2, but disarms the recptor for subsequent activation by trypsin
-
?
flagellin + H2O
?
the enzyme is capable of degrading exogenous flagellin under calcium-replete conditions and prevents flagellin-mediated immune recognition
-
-
?
flagellin + H2O
?
the enzyme is capable of degrading exogenous flagellin under calcium-replete conditions and prevents flagellin-mediated immune recognition
-
-
?
additional information
?
-
-
pseudolysin eliminates epitopes recognized by the R5 antibody, while those detected by the G12 antibody remain intact, despite destruction of the nearby major T-cell epitope QPQLPY
-
-
?
additional information
?
-
Acinetobacter junii FA10
-
pseudolysin eliminates epitopes recognized by the R5 antibody, while those detected by the G12 antibody remain intact, despite destruction of the nearby major T-cell epitope QPQLPY
-
-
?
additional information
?
-
-
probably responsible for the tissue destruction observed during pulmonary and corneal infections by the pathogen organism Pseudomonas aeruginosa
-
-
?
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METALS and IONS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Ca2+
-
a calcium ion is also required for enzyme activity, and stabilizes its tertiary structure. Contact with the calcium ion is made by the carboxyl groups of Asp136, Glu172, Glu175, and Asp183, the carbonyl group of Leu185, and one water molecule
Zinc
Zn2+
additional information
Zn2+
-
the enzyme has a catalytic zinc ion at the active site cleft with a tetrahedral coordination formed by the two histidines of a HEXXH motif, and a glutamic acid located 18-72 residues C-terminal of the HEXXH motif. The fourth zinc coordinating ligand in the free enzyme is a water molecule
Zn2+
PAE contains zinc, binding site structure, HEXXH is the putative signature of Zn-metalloproteases, overview
Zn2+
-
the enzyme is a metalloprotease that requires a zinc atom, bound to His140, His144, and Glu164, for its activity
Zn2+
zinc metalloproteinase. His140, His144 and Glu164 serve as ligands for zinc ion
additional information
-
Mg2+ and Ca2+ at 0.625 mM have no effect on the activity, Mn2+, Co2+, and Fe3+ at 0.625 mM partly inhibit the enzyme, Zn2+ and Cu2+ inhibit the enzyme completely
additional information
-
metalloprotease, the enzynme contains the typical metalloendopeptidases consensus zinc-binding sequence HEXXH
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INHIBITOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
2-mercaptoacetyl-L-phenylalanyl-L-leucine
prevents corneal perforation completely
2-mercaptoacetyl-Phe-Leu
at 0.1 mM 96% inhibition with azocasein as substrate, 97% inhibition with elastin as substrate and 97% inhibition with cartilage as substrate, at 0.01 mM 77% inhibition with azocasein as substrate, 33% inhibition with elastin as substrate and 66% inhibition with cartilage as substrate
2-[(biphenyl-4-ylsulfonyl)[2-(hydroxyamino)-2-oxoethyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
-
-
2-[benzyl[2-(hydroxyamino)-2-oxoethyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
-
the phenyl group of the strong binder occupies the S'2-subpocket, while a second ring system occupy the S1-subpocket in both thermolysin, EC 3.4.24.27, and pseudolysin
2-[benzyl[2-(hydroxyamino)-2-oxoethyl]amino]-N-[3-(4-phenylpiperazin-1-yl)propyl]acetamide (non-preferred name)
-
the phenyl group of the strong binder occupies the S'2-subpocket, while a second ring system occupy the S1-subpocket in both thermolysin, EC 3.4.24.27, and pseudolysin
2-[[2-(hydroxyamino)-2-oxoethyl][(4-methoxyphenyl)sulfonyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
-
-
2-[[2-(hydroxyamino)-2-oxoethyl][(4-phenoxyphenyl)sulfonyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
-
-
ammonium chloride
extracellular elastase activity decreases if cells are cultured in the presence of ammonium chloride
anti elastase monoclonal antibody
reduces PE activity significantly
-
benzyloxycarbonyl-Gly-NHOH
at 14 mM 98% inhibition with azocasein as substrate, 95% inhibition with elastin as substrate and 95% inhibition with cartilage as substrate, at 1.4 mM 77% inhibition with azocasein as substrate, 84% inhibition with elastin as substrate and 67% inhibition with cartilage as substrate
benzyloxycarbonyl-Leu-NHOH
at 5.0 mM 98% inhibition with azocasein as substrate, 100% inhibition with elastin as substrate and 94% inhibition with cartilage as substrate, at 0.5 mM 76% inhibition with azocasein as substrate, 93% inhibition with elastin as substrate and 57% inhibition with cartilage as substrate
D-glucose
extracellular elastase activity decreases if cells are cultured in the presence of glucose
HS-CH2-CO-Phe-Tyr-NH2
-
at 0.2 mM and 0.025 mM inhibits the degradation of the pseudolysin natural substrates nucleoside diphosphate kinase and IgG, respectively
HSAc-Leu-Phe
-
0.1 mM, inhibits 97% of the degradation of azocasein and elastin substrates by pseudolysin
HSAc-Phe-Leu
-
0.1 mM, inhibits 97% of the degradation of azocasein and elastin substrates by pseudolysin
N-(1-carboxy-3-phenylpropyl)-phenylalanyl-alpha-asparagine
enzyme binding structure analysis, PDB ID 1U4G. The inhibitor is bound in the S1-S1â sub-sites of pseudolysin by hydrogen bonding and hydrophobic and weak van der Waal's interactions
N-[(2R)-1-(hydroxyamino)-3-methyl-1-oxobutan-2-yl]-N-[(4-phenoxyphenyl)sulfonyl]glycine
-
-
peptides
-
containing the hydroxamic acid, N-hydroxypeptide and thiol functional groups
Streptomyces metalloproteinase inhibitor
-
i.e. SMPI, molecular dynamics study of enzyme-inhibitor complex. Inhibitor interacts with pseudolysin via the rigid active side loop and several contact sites outside this loop
-
[(biphenyl-4-ylmethyl)[2-(hydroxyamino)-2-oxoethyl]amino]acetic acid
-
-
[(biphenyl-4-ylsulfonyl)[2-(hydroxyamino)-2-oxoethyl]amino]acetic acid
-
-
[1-[2-(hydroxyamino)-2-oxoethyl]-2-[3-(4-phenylpiperazin-1-yl)propyl]hydrazinyl]acetic acid
-
-
[[(4-methoxyphenyl)sulfonyl](2-oxo-2-[[2-(4-sulfamoylphenyl)ethyl]amino]ethyl)amino]acetic acid
-
-
[[2-(hydroxyamino)-2-oxoethyl](4-nitrobenzyl)amino]acetic acid
-
-
[[2-(hydroxyamino)-2-oxoethyl](4-phenoxybenzyl)amino]acetic acid
-
-
[[2-(hydroxyamino)-2-oxoethyl][(4-methoxyphenyl)sulfonyl]amino]acetic acid
-
-
[[2-(hydroxyamino)-2-oxoethyl][(4-phenoxyphenyl)sulfonyl]amino]acetic acid
-
-
phosphoramidon
N-(alpha-rhamnopyranosyloxyhydroxyphosphinyl)-Leu-Trp
phosphoramidon
-
N-(alpha-L-rhamnopyranosyloxyhydroxyphosphinyl)-L-leucyl-L-tryptophan
phosphoryl-L-leucyl-L-phenylalanine
at 0.1 mM 98% inhibition with azocasein as substrate, 94% inhibition with elastin as substrate and 98% inhibition with cartilage as substrate, at 0.01 mM 83% inhibition with azocasein as substrate, 87% inhibition with elastin as substrate and 89% inhibition with cartilage as substrate
additional information
-
inhibitor synthesis, docking analysis and binding structure, molecular modeling and Molecular dynamics simulation of pseudolysin-ligand interactions, overview. When the compounds possess two ring systems, the largest and most electron rich ring system seems to occupy the S1-subpocket. The fourth zinc coordinating ligand in the free enzyme is a water molecule. Upon inhibitor binding this water molecule is replaced by a metal binding group of the inhibitor
-
additional information
-
diisopropyl fluorophosphate; not: ClCH2CO-N-hydroxyleucine-OCH3; tosyl-L-Phe chloromethyl ketone, PCMB
-
additional information
-
no inhibition by diisopropylphosphofluoridate at 20 mM
-
additional information
extracellular elastase activity decreases if cells are cultured in the presence of sub-inhibitory concentrations of certain antibiotics
-
additional information
-
extracellular elastase activity decreases if cells are cultured in the presence of sub-inhibitory concentrations of certain antibiotics
-
additional information
-
no inhibition by dithio-bis(nitrobenzoic acid) and phenylmethylsulfonyl fluoride, and by K+ and Na+
-
additional information
N-alpha mercaptoamide-containing dipeptides as inhibitors
-
additional information
-
N-alpha mercaptoamide-containing dipeptides as inhibitors
-
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ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
additional information
no stimulation by ceftazidime and gentamycin
-
additional information
-
no stimulation by ceftazidime and gentamycin
-
additional information
-
the pro-sequence, consisting of 174 amino acids, is cleaved by autoproteolytic processing in the periplasm to produce the active, mature elastase of 301 amino acids
-
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DISEASE
TITLE OF PUBLICATION
LINK TO PUBMED
Abscess
Suppression of polymorphonuclear leucocyte chemotaxis by Pseudomonas aeruginosa elastase in vitro: a study of the mechanisms and the correlation with ring abscess in pseudomonal keratitis.
Abscess
The role of Pseudomonas aeruginosa elastase in corneal ring abscess formation in pseudomonal keratitis.
Aortic Aneurysm, Abdominal
Production and localization of 92-kilodalton gelatinase in abdominal aortic aneurysms. An elastolytic metalloproteinase expressed by aneurysm-infiltrating macrophages.
Arthritis, Rheumatoid
A trypsin sensitive stromelysin isolated from rheumatoid synovial fluid is an activator for matrix metalloproteinases.
Arthritis, Rheumatoid
Paradoxical derepression of collagenase gene expression by the antirheumatic gold compound aurothiomalate.
Celiac Disease
Identification of Pseudolysin (lasB) as an Aciduric Gluten-Degrading Enzyme with High Therapeutic Potential for Celiac Disease.
Cross Infection
Structural Requirements of N-alpha-Mercaptoacetyl Dipeptide (NAMdP) Inhibitors of Pseudomonas Aeruginosa Virulence Factor LasB: 3D-QSAR, Molecular Docking, and Interaction Fingerprint Studies.
Cystic Fibrosis
Colistin stimulates the activity of neutrophil elastase and Pseudomonas aeruginosa elastase.
Cystic Fibrosis
Evidence that Pseudomonas aeruginosa elastase does not inactivate the bronchial inhibitor in the presence of leukocyte elastase. Studies with cystic fibrosis sputum and with pure proteins.
Cystic Fibrosis
Functional importance of cystic fibrosis immunoglobulin G fragments generated by Pseudomonas aeruginosa elastase.
Cystic Fibrosis
Granulocyte neutral proteases and Pseudomonas elastase as possible causes of airway damage in patients with cystic fibrosis.
Cystic Fibrosis
Production of elastase, exotoxin A, and alkaline protease in sputa during pulmonary exacerbation of cystic fibrosis in patients chronically infected by Pseudomonas aeruginosa.
Cystic Fibrosis
Pseudomonas aeruginosa elastase disables proteinase-activated receptor 2 in respiratory epithelial cells.
Cystic Fibrosis
Pseudomonas aeruginosa LasB protease impairs innate immunity in mice and humans by targeting a lung epithelial cystic fibrosis transmembrane regulator-IL-6-antimicrobial-repair pathway.
Encephalomyelitis, Autoimmune, Experimental
Treatment of an encephalitogenic peptide from guinea pig myelin basic protein with alpha-protease and thermolysin. Isolation of fragments and determination of cleavage sites.
Hyperhomocysteinemia
Hyperhomocysteinemia induces elastolysis in minipig arteries: structural consequences, arterial site specificity and effect of captopril-hydrochlorothiazide.
Infections
Colistin stimulates the activity of neutrophil elastase and Pseudomonas aeruginosa elastase.
Infections
Diverse effects of Galleria mellonella infection with entomopathogenic and clinical strains of Pseudomonas aeruginosa.
Infections
Experimental studies of the pathogenesis of infections owing to Pseudomonas aeruginosa: elastase, an IgG protease.
Infections
Immunization with a Pseudomonas aeruginosa elastase peptide reduces severity of experimental lung infections due to P. aeruginosa Or Burkholderia cepacia.
Infections
Manipulation of the silkworm immune system by a metalloprotease from the pathogenic bacterium Pseudomonas aeruginosa.
Infections
N-Aryl-3-mercaptosuccinimides as Antivirulence Agents Targeting Pseudomonas aeruginosa Elastase and Clostridium Collagenases.
Infections
Neutrophil elastase cleaves C3bi on opsonized pseudomonas as well as CR1 on neutrophils to create a functionally important opsonin receptor mismatch.
Infections
Novel Inhibitors Of The Pseudomonas aeruginosa Virulence Factor Pseudolysin/LasB: A Potential Therapeutic Approach For The Attenuation Of Virulence Mechanisms In Pseudomonal Infection.
Infections
Pseudomonas aeruginosa Keratitis: Protease IV and PASP as Corneal Virulence Mediators.
Infections
Pseudomonas keratitis. The role of an uncharacterized exoprotein, protease IV, in corneal virulence.
Infections
Pseudomonas protease. Purification, partial characterization, and its effect on collagen, proteoglycan, and rabbit corneas.
Keratitis
Corneal virulence of Pseudomonas aeruginosa elastase B and alkaline protease produced by Pseudomonas putida.
Keratitis
Identification of a novel secreted protease from Pseudomonas aeruginosa that causes corneal erosions.
Keratitis
Inhibition of Pseudomonas aeruginosa elastase and Pseudomonas keratitis using a thiol-based peptide.
Keratitis
Specific inhibitors of Pseudomonas aeruginosa elastase as potential drugs for the treatment of Pseudomonas keratitis.
Keratitis
Suppression of polymorphonuclear leucocyte chemotaxis by Pseudomonas aeruginosa elastase in vitro: a study of the mechanisms and the correlation with ring abscess in pseudomonal keratitis.
Keratitis
The effect of 2-mercaptoacetyl-L-phenylalanyl-L-leucine, a specific inhibitor of Pseudomonas aeruginosa elastase, on experimental Pseudomonas keratitis in rabbit eyes.
Keratitis
The role of Pseudomonas aeruginosa elastase in corneal ring abscess formation in pseudomonal keratitis.
Lung Neoplasms
Characterization of a connective tissue degrading metalloproteinase from human small cell lung cancer cells.
Neoplasms
Enhancement of neutral metalloproteinase in the dermis after one topical application of tumor-promoting phorbol ester.
Neoplasms
Synthesis and HPLC analysis of enzymatically cleavable linker consisting of poly(ethylene glycol) and dipeptide for the development of immunoconjugate.
Osteoarthritis
The effect of drugs used in the treatment of osteoarthrosis on stromelysin (proteoglycanase) of equine synovial cell origin.
Otitis Media
[The quantitation of Pseudomonas aeruginosa elastase in suppurative chronic otitis media using a sensitive ELISA method]
Otitis Media, Suppurative
ELISA to determine immunoreactive Pseudomonas aeruginosa elastase in chronic suppurative otitis media.
Otitis Media, Suppurative
[The quantitation of Pseudomonas aeruginosa elastase in suppurative chronic otitis media using a sensitive ELISA method]
Pseudomonas Infections
Pseudomonas aeruginosa elastase and its role in pseudomonas infections.
Pseudomonas Infections
Site-directed mutagenesis of Glu-141 and His-223 in Pseudomonas aeruginosa elastase: catalytic activity, processing, and protective activity of the elastase against Pseudomonas infection.
Small Cell Lung Carcinoma
Characterization of a connective tissue degrading metalloproteinase from human small cell lung cancer cells.
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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
1.4
3-(2-furyl)acryloyl-glycyl-L-phenylalanyl-L-phenylalanine
-
1.8
Benzyloxycarbonyl-Gly-Leu-Ala
-
benzyloxycarbonyl-Gly-Leu-Leu, benzyloxycarbonyl-Phe-Leu-Ala
additional information
azocasein
-
kcat/Km: 1.3 mg/ml, pH 7.5, 40°C
-
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TURNOVER NUMBER [1/s]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
240
3-(2-furyl)acryloyl-glycyl-L-phenylalanyl-L-phenylalanine
-
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Ki VALUE [mM]
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
0.034
2-mercaptoacetyl-Leu-Dphe
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
0.0015
2-mercaptoacetyl-Leu-Phe
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
0.0002
2-mercaptoacetyl-Phe-Leu
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
0.028
benzyloxycarbonyl-Gly-NHOH
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
6.2
benzyloxycarbonyl-L-leucine
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
5
benzyloxycarbonyl-L-phenylalanine
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
0.011
benzyloxycarbonyl-Leu-NHOH
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
0.021
benzyloxycarbonyl-Phe-NHOH
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
1.1
Leu-Phe
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
0.000041
N-mercaptoacetyl-Phe-Tyr-amide
-
pH and temperature not specified in the publication
0.4
Phe-Leu
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
0.0002
phosphoryl-L-leucyl-L-phenylalanine
at pH 7.5 and 25°C, with furylacryloyl-glycyl-L-leucyl-L-alanine as substrate
0.0004
rapidly eluting isomer of HSCH2(DL)CH[CH2CH(CH3)2]CO-Phe-Ala-NH2
-
-
0.0003
slowly eluting isomer of HSCH2(DL)CH[CH2CH(CH3)2]CO-Phe-Ala-NH2
-
-
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IC50 VALUE [mM]
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
0.00273
1-(biphenyl-4-ylmethyl)-3-hydroxy-2-methylpyridine-4(1H)-thione
Pseudomonas aeruginosa
-
pH and temperature not specified in the publication
0.031
2-[(biphenyl-4-ylsulfonyl)[2-(hydroxyamino)-2-oxoethyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.0004
2-[benzyl[2-(hydroxyamino)-2-oxoethyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.0028 - 0.0067
2-[benzyl[2-(hydroxyamino)-2-oxoethyl]amino]-N-[3-(4-phenylpiperazin-1-yl)propyl]acetamide (non-preferred name)
0.015 - 0.033
2-[[2-(hydroxyamino)-2-oxoethyl][(4-methoxyphenyl)sulfonyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
0.016 - 0.276
2-[[2-(hydroxyamino)-2-oxoethyl][(4-phenoxyphenyl)sulfonyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
0.0000059
N-aryl mercaptoacetamide
Pseudomonas aeruginosa
-
pH and temperature not specified in the publication
0.082 - 0.336
N-[(2R)-1-(hydroxyamino)-3-methyl-1-oxobutan-2-yl]-N-[(4-phenoxyphenyl)sulfonyl]glycine
0.121
[(biphenyl-4-ylmethyl)[2-(hydroxyamino)-2-oxoethyl]amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.33
[1-[2-(hydroxyamino)-2-oxoethyl]-2-[3-(4-phenylpiperazin-1-yl)propyl]hydrazinyl]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.282
[[(4-methoxyphenyl)sulfonyl](2-oxo-2-[[2-(4-sulfamoylphenyl)ethyl]amino]ethyl)amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.02
[[2-(hydroxyamino)-2-oxoethyl](4-nitrobenzyl)amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.0067
2-[benzyl[2-(hydroxyamino)-2-oxoethyl]amino]-N-[3-(4-phenylpiperazin-1-yl)propyl]acetamide (non-preferred name)
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.0028
2-[benzyl[2-(hydroxyamino)-2-oxoethyl]amino]-N-[3-(4-phenylpiperazin-1-yl)propyl]acetamide (non-preferred name)
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate 7-methoxycoumarin-4-yl-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys-(2,4-dinitrophenyl)-OH
0.015
2-[[2-(hydroxyamino)-2-oxoethyl][(4-methoxyphenyl)sulfonyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.033
2-[[2-(hydroxyamino)-2-oxoethyl][(4-methoxyphenyl)sulfonyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate 7-methoxycoumarin-4-yl-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys-(2,4-dinitrophenyl)-OH
0.016
2-[[2-(hydroxyamino)-2-oxoethyl][(4-phenoxyphenyl)sulfonyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.276
2-[[2-(hydroxyamino)-2-oxoethyl][(4-phenoxyphenyl)sulfonyl]amino]-N-[2-(4-sulfamoylphenyl)ethyl]acetamide (non-preferred name)
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate 7-methoxycoumarin-4-yl-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys-(2,4-dinitrophenyl)-OH
0.082
N-[(2R)-1-(hydroxyamino)-3-methyl-1-oxobutan-2-yl]-N-[(4-phenoxyphenyl)sulfonyl]glycine
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.336
N-[(2R)-1-(hydroxyamino)-3-methyl-1-oxobutan-2-yl]-N-[(4-phenoxyphenyl)sulfonyl]glycine
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate 7-methoxycoumarin-4-yl-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys-(2,4-dinitrophenyl)-OH
0.15
[(biphenyl-4-ylsulfonyl)[2-(hydroxyamino)-2-oxoethyl]amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.241
[(biphenyl-4-ylsulfonyl)[2-(hydroxyamino)-2-oxoethyl]amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate 7-methoxycoumarin-4-yl-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys-(2,4-dinitrophenyl)-OH
0.43
[[2-(hydroxyamino)-2-oxoethyl](4-phenoxybenzyl)amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate 7-methoxycoumarin-4-yl-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys-(2,4-dinitrophenyl)-OH
0.2
[[2-(hydroxyamino)-2-oxoethyl](4-phenoxybenzyl)amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.169
[[2-(hydroxyamino)-2-oxoethyl][(4-methoxyphenyl)sulfonyl]amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
0.153
[[2-(hydroxyamino)-2-oxoethyl][(4-methoxyphenyl)sulfonyl]amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate 7-methoxycoumarin-4-yl-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys-(2,4-dinitrophenyl)-OH
0.046
[[2-(hydroxyamino)-2-oxoethyl][(4-phenoxyphenyl)sulfonyl]amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate 7-methoxycoumarin-4-yl-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys-(2,4-dinitrophenyl)-OH
0.186
[[2-(hydroxyamino)-2-oxoethyl][(4-phenoxyphenyl)sulfonyl]amino]acetic acid
Bacillus thermoproteolyticus
-
pH 7.8, 37°C, versus substrate Abz-Ala-Gly-Leu-Ala-4-nitrobenzylamide
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SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
2389
-
recombinant glycosylated enzyme, pH 7.5, 60°C, substrate casein
2401
-
recombinant nonglycosylated enzyme, pH 7.5, 60°C, substrate casein
3.2
-
purified recombinant enzyme from Escherichia coli expression, pH 8.0, 25°C, substrate N-succinyl-Ala-Ala-Ala-4-nitroanilide
additional information
additional information
-
development and evaluation of a highly sensitive assay based on internally quenched fluorogenic peptide substrates comprising an edans (5-(2-aminoethylamino)-1-naphthalenesulfonic acid) group at the C-terminus and a dabsyl (4-(dimethylamino)azobenzene-4'-sulfonyl chloride) fluorophore at the N-terminus of the peptide chains, overview
additional information
-
chronic wound fluid samples from infected human subjects, pH 7.3
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pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
5.8
with 2-aminobenzoyl-Ala-Gly-Leu-Ala-4-nitrobenzylamide as substrate
7.5
additional information
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pH RANGE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
4 - 7
-
no activity at pH 2.0, the enzyme can resist and be active at low pH values e.g. in the human stomach
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TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
37
55
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TEMPERATURE RANGE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
30 - 50
-
30°C: about 75% of maximal activity, 50°C: about 85% of maximal activity
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pI VALUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
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ORGANISM
COMMENTARY
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
isolated from marine water in Sfax city, Tunisia, gene lasB
-
-
brenda
the PA5022 mutant (with transposon inactivation of PA5022) forms thicker biofilms compared to the PA68 wild-type strain and is impaired in its elastase activity
-
-
brenda
Pseudomonas aeruginosa PAO-E64
exhibits greatly reduced amounts of elastolytic activity
SwissProt
brenda
-
SwissProt
brenda
exhibits greatly reduced amounts of elastolytic activity
SwissProt
brenda
isolated from marine water in Sfax city, Tunisia, gene lasB
-
-
brenda
the PA5022 mutant (with transposon inactivation of PA5022) forms thicker biofilms compared to the PA68 wild-type strain and is impaired in its elastase activity
-
-
brenda
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SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
SOURCE
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LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY
GeneOntology No.
LITERATURE
SOURCE
mutants E141D, E141Q, E141G, H223G, H223E, and H223L
-
brenda
additional information
-
most abundant peptidase found in pseudomonal secretions, which contributes to the invasiveness of Pseudomonas aeruginosa due to its ability to cleave several extracellular matrix proteins and to disrupt the basolateral intercellular functions present in the host tissues
-
brenda
additional information
in the sputum of patients infected with Pseudomonas aeruginosa
-
brenda
additional information
-
in the sputum of patients infected with Pseudomonas aeruginosa
-
brenda
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GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
physiological function
malfunction
-
the exosecretome of the LasB-deficient pseudomonal strain PAO1lasBDELTA has limited impact on human vascular cell adherence and viability
evolution
additional information
physiological function
-
elastase B of Pseudomonas aeruginosa stimulates the humoral immune response in larvae of the greater wax moth, Galleria mellonella. The insects exhibit increased antibacterial activity with appearance of antimicrobial peptides and a higher level of lysozyme in cell-free hemolymph
physiological function
-
Pseudomonal LasB cleaves extracellular matrix proteins involved in adherence of vascular stromal cells in human host. LasB can induce vascular cell anoikis in human cells through simultaneous proteolysis of extracellular matrix components and cell receptors, suggesting the uPAR-vitronectin axis as a major target in this process. In heart valves of patients occurs extensive, LasB-dependent degradation of extracellular matrix-associated fibronectin and vitronectin, that preceeds cell de-adherence, whereas type I collagen shows limited degradation. Disruption of cell/ECM interactions resulting from uncontrolled pericellular proteolysis leads to detachment-induced cell apoptosis, anoikis, contributing to the morbid evolution of inflammatory vascular diseases, overview
physiological function
pseudolysin is the most abundant protease secreted by Pseudomonas aeruginosa and is the major extracellular virulence factor of this opportunistic human pathogen. Pseudolysin destroys human tissues by solubilizing elastin
physiological function
-
the protease is a virulence factor that acts by destroying peptides of the native immune system
physiological function
digestion of thrombin by Pseudomonas aeruginosa elastase leads to the release of the C-terminal thrombin-derived peptide FYT21, which inhibits pro-inflammatory responses to several pathogen-associated molecular patterns in vitro and in vivo by preventing toll-like receptor dimerization and subsequent activation of down-stream signalling pathwaysthe enzyme cleaves a C-terminal peptide from human thrombin that inhibits host inflammatory responses
physiological function
-
the enzyme is produced during the course of clinical infections and plays an important role in the virulence of Pseudomonas aeruginosa in chronic lung infections
physiological function
-
the enzyme outstands as a pivotal virulence attribute during the infectious process, playing multifunctional roles in different aspects of the pathogen-host interaction. Most abundant peptidase found in pseudomonal secretions, which contributes to the invasiveness of Pseudomonas aeruginosa due to its ability to cleave several extracellular matrix proteins and to disrupt the basolateral intercellular functions present in the host tissues. Pseudolysin makes Pseudomonas aeruginosa able to overcome host defenses by the hydrolysis of many immunologically relevant molecules, including antibodies and complement components
physiological function
-
the enzyme is produced during the course of clinical infections and plays an important role in the virulence of Pseudomonas aeruginosa in chronic lung infections
-
evolution
-
the typical metalloendopeptidases consensus zinc-binding sequence HEXXH and the catalytic residues in the active site are conserved in the A2 elastase
evolution
-
pseudolysin belongs to the thermolysin-like family of metallopeptidases
evolution
-
pseudolysin is a metalloprotease belonging to the thermolysin (M4) family proteases
evolution
pseudolysin is a Zn2+ metalloprotease of the thermolysin family
evolution
-
thermolysin and pseudolysin belong to subclan MA(E) of peptidases, also known as the Glu-zincins, of the matrix metalloproteinases family of zinc-containing endoproteinases with broad substrate specificity and extracellular matrix components are among the substrates
evolution
Acinetobacter junii FA10
-
pseudolysin is a metalloprotease belonging to the thermolysin (M4) family proteases
-
evolution
-
the typical metalloendopeptidases consensus zinc-binding sequence HEXXH and the catalytic residues in the active site are conserved in the A2 elastase
-
additional information
-
the N-terminal signal peptide consists of 23 residues bordered with the signal peptidase recognition site Ala-Phe-Ala-Ala
additional information
mechanism of action of endopeptidase pseudolysin on elastin binding and degradation, pseudolysin has a preference for aromatic and/or large aliphatic amino acids at the P1' position and a distinct bias against acidic residues at the P2' position, overview
additional information
-
mechanism of action of endopeptidase pseudolysin on elastin binding and degradation, pseudolysin has a preference for aromatic and/or large aliphatic amino acids at the P1' position and a distinct bias against acidic residues at the P2' position, overview
additional information
-
salt bidges in the enzyme, structure overview. Relationship between salt bridges and stability/enzymatic activity, structure analysis and molecular dynamics using crystal structure with PDB ID 1EZM, overview
additional information
-
the enzyme is synthesized in the cytoplasm as a pre-proenzyme consisting of a 2.4-kDa signal peptid, an 18.1-kDa pro-peptide and the 33.1-kDa mature protein. The signal peptide is cleaved from the pre-proenzyme during translocation across the inner membrane, leaving a 51.2-kDa proenzyme (consisting of the pro-peptide and the mature protein). In the periplasm, the proenzymeis folded, guided by the pro-peptide, and a disulfide bond between Cys270 and Cys297 is formed. The pro-peptide is then removed by autoproteolysis, but remains non-covalently attached to mature pseudolysin. A second disulfide bond between Cys30 and Cys58 of the enzyme is then formed. The pro-peptide and mature enzyme are secreted from the cell together, where they dissociate, and the liberated pro-peptide is degraded by the active enzyme
additional information
-
the glutamic acid of the HEXXH motif is catalytically important
additional information
-
the N-terminal signal peptide consists of 23 residues bordered with the signal peptidase recognition site Ala-Phe-Ala-Ala
-
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UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION
The reliability class of the localization prediction ranges from 1 (very reliable) to 5 (not reliable).
The reliability class of the localization prediction ranges from 1 (very reliable) to 5 (not reliable). ELAS_PSEAB
Pseudomonas aeruginosa (strain UCBPP-PA14)
498
0
53601
Swiss-Prot
-
ELAS_PSEAE
Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
498
0
53687
Swiss-Prot
-
A0A023PZU1_9GAMM
862
0
97119
TrEMBL
-
A0A6J4X0D2_9DELT
3031
1
322481
TrEMBL
-
A0A483AIT0_9BACT
694
0
76561
TrEMBL
-
F2JZX0_MARM1
Marinomonas mediterranea (strain ATCC 700492 / JCM 21426 / NBRC 103028 / MMB-1)
830
0
91820
TrEMBL
-
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PDB
SCOP
CATH
UNIPROT
ORGANISM
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MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
33000
33030
-
x * 34000, SDS-PAGE, x * 53610, pro-enzyme, sequence calculation, x * 33030, mature enzyme, sequence calculation
34000
-
x * 34000, SDS-PAGE, x * 53610, pro-enzyme, sequence calculation, x * 33030, mature enzyme, sequence calculation
35000
36000
51000
52000
x * 52000, SDS-PAGE, pro-elastase, enzymatically inactive
53600
53610
-
x * 34000, SDS-PAGE, x * 53610, pro-enzyme, sequence calculation, x * 33030, mature enzyme, sequence calculation
33000
-
x * 33000, SDS-PAGE, recombinant protein from Escherichia coli
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SUBUNIT
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
additional information
?
-
x * 34000, SDS-PAGE, x * 53610, pro-enzyme, sequence calculation, x * 33030, mature enzyme, sequence calculation
?
-
x * 34000, SDS-PAGE, x * 53610, pro-enzyme, sequence calculation, x * 33030, mature enzyme, sequence calculation
-
additional information
comparison of the 3D structures of PAE and Vibrio cholerae zinc-containing and calcium-stabilized soluble hemagglutinin/protease, HA/P, i.e. vibriolysin, reveals a remarkable similarity having a conserved alpha + beta domain, modelling, overview
additional information
-
comparison of the 3D structures of PAE and Vibrio cholerae zinc-containing and calcium-stabilized soluble hemagglutinin/protease, HA/P, i.e. vibriolysin, reveals a remarkable similarity having a conserved alpha + beta domain, modelling, overview
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POSTTRANSLATIONAL MODIFICATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
glycoprotein
-
the recombinant elastase contains three potential N-glycosylation sites N43, N212, and N280 (Asn-Xaa-Ser/Thr consensus sequences), potential role of N-glycosylation in the activity and stability. Non- and glycosylated isoforms of rPAE display similar kinetic parameters for hydrolyzing casein in aqueous medium, and when catalyzing bipeptide synthesis in 50% v/v DMSO, they exhibit identical substrate specificity and activity, and produce similar yields. The N-linked oligosaccharides of Pichia pastoris-secreted glycoproteins are a high-mannose type (Man8GlcNAc2 or Man9GlcNAc2) with molecular weights close to 2 kDa
proteolytic modification
proteolytic modification
-
the pro-sequence, consisting of 174 amino acids, is cleaved by autoproteolytic processing in the periplasm to produce the active, mature elastase of 301 amino acids
proteolytic modification
-
the enzyme is synthesized in the cytoplasm as a pre-proenzyme consisting of a 2.4-kDa signal peptid, an 18.1-kDa pro-peptide and the 33.1-kDa mature protein. The signal peptide is cleaved from the pre-proenzyme during translocation across the inner membrane, leaving a 51.2-kDa proenzyme (consisting of the pro-peptide and the mature protein). In the periplasm, the proenzymeis folded, guided by the pro-peptide, and a disulfide bond between Cys270 and Cys297 is formed. The pro-peptide is then removed by autoproteolysis, but remains non-covalently attached to mature pseudolysin. A second disulfide bond between Cys30 and Cys58 of the enzyme is then formed. The pro-peptide and mature enzyme are secreted from the cell together, where they dissociate, and the liberated pro-peptide is degraded by the active enzyme
proteolytic modification
LasB is produced as a precursor protein that requires autocatalytic processing to ensure proper folding as it is exported across the outer membrane. Ca2+ is needed either for efficient transcription of lasB or during the process of folding and export, as calcium plays a role in the structural integrity of LasB
proteolytic modification
-
the pro-sequence, consisting of 174 amino acids, is cleaved by autoproteolytic processing in the periplasm to produce the active, mature elastase of 301 amino acids
-
proteolytic modification
-
LasB is produced as a precursor protein that requires autocatalytic processing to ensure proper folding as it is exported across the outer membrane. Ca2+ is needed either for efficient transcription of lasB or during the process of folding and export, as calcium plays a role in the structural integrity of LasB
-
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CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
in the presence of inhibitors S-homoPhe [N-alpha-alpha]Phe-IsoAsn, phosphoramidon, and ClCH2CO-HOLeu-Ala-Gly-NH2
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PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
D201A
-
site-directed mutagenesis, the mutant shows slightly increased thermal stability and slightly decreased activity compared to the wild-type enzyme
R205A
-
site-directed mutagenesis, the mutant shows slightly increased thermal stability and slightly decreased activity compared to the wild-type enzyme
R179A
-
site-directed mutagenesis, the mutant shows decreased thermal stabilities and increased activities compared to the wild-type enzyme
N212Q
-
site-directed mutagenesis, the mutant enzyme shows similar activity and slightly decreased thermostability compared to the wild-type enzyme
D189A
-
site-directed mutagenesis, the mutant shows decreased thermal stabilities and increased activities compared to the wild-type enzyme
E249A
-
site-directed mutagenesis, the mutant shows both decreased thermal stability and decreased activity compared to the wild-type enzyme
N43Q
-
site-directed mutagenesis, the mutant enzyme shows similar activity and slightly decreased thermostability compared to the wild-type enzyme
N280Q
-
site-directed mutagenesis, the mutant enzyme shows similar activity and slightly decreased thermostability compared to the wild-type enzyme
N212Q/N280Q
-
site-directed mutagenesis, 90.6% decreased activity compared to the wild-type enzyme
N43Q/N212Q/N280Q
-
site-directed mutagenesis, 90.6% decreased activity compared to the wild-type enzyme
N43Q/N212Q
-
site-directed mutagenesis, 68.7% decreased activity compared to the wild-type enzyme
N43Q/N280Q
-
site-directed mutagenesis, 73.6% decreased activity compared to the wild-type enzyme
additional information
-
mutation of any potential N-glycosylation site was detrimental to its expression in Pichia pastoris with 23.9% decrease in expression of the N43Q mutant, 63.6% of the N212Q mutant, and 63.7% of the N280Q mutant compared with the wild type
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pH STABILITY
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
5 - 11
-
purified enzyme, 60 min, loss of 30% activity at pH 5.0 and of 50% at pH 11.0, completely stable at pH 6.0-10.0, profile overview
717673
6 - 9
6 - 9.5
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TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
30 - 60
60
70
30 - 60
-
purified enzyme, completely stable at 30°C and 40°C after 60 min, A2 protease retains about 80% and 60% of its initial activity after incubation for 60 min at 50°C and 60°C, respectively
70
-
half-lives of the glycosylated and non-glycosylated forms of recombinant enzyme are 32.2 and 23.1 min, respectively
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GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
the first and second disulfide bonds are essential for the stability and activity of the enzyme, respectively
-
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ORGANIC SOLVENT
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
2-propanol
Acetone
chloroform
-
pH 7.0, 30°C, 4 days, 95.6% activity remaining for the nonglycosylated recombinant enzyme, 91.5% for the glycosylated recombinant enzyme
dimethyl sulfoxide
DMSO
Ethanol
Ethyl acetate
hexane
isopropanol
-
pH 7.0, 30°C, 4 days, 39.2% activity remaining for the nonglycosylated recombinant enzyme, 17.5% for the glycosylated recombinant enzyme
Methanol
-
pH 7.0, 30°C, 4 days, 102% activity remaining for the nonglycosylated recombinant enzyme, 96.5% for the glycosylated recombinant enzyme
n-Butanol
-
pH 7.0, 30°C, 4 days, 89.5% activity remaining for the nonglycosylated recombinant enzyme, 78.5% for the glycosylated recombinant enzyme
additional information
DMSO
-
pH 7.0, 30°C, 4 days, 95.1% activity remaining for the nonglycosylated recombinant enzyme, 83.2% for the glycosylated recombinant enzyme
Ethanol
-
pH 7.0, 30°C, 4 days, 71.5% activity remaining for the nonglycosylated recombinant enzyme, 62.1% for the glycosylated recombinant enzyme
additional information
-
the enzyme is stable in the presence of organic solvents mainly diethyl ether and DMSO
additional information
-
the enzyme is stable in the presence of organic solvents mainly diethyl ether and DMSO
-
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STORAGE STABILITY
ORGANISM
UNIPROT
LITERATURE
-20°C, 0.02 M Tris-hydrochloride, 0.5 mM CaCl2 (pH 7.5), 1 year, less than 10% loss of activity
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PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
native enzyme 2.23fold to homogeneity by ultrafiltration, gel filtration, and anion exchange chromatography
-
native extracellular enzyme from cell culture medium by ammonium sulfate fractionation, dialysis, anion exchange chromatography, and cation exchange chromatography
-
native extracellular enzyme from culture supernatant by anion exchange chromatography and ultrafiltration
-
recombinant wild-type and mutant enzymes from Escherichia coli strain BL21 (DE3) by ammonium sulfate fractionation, anion exchange chromatography
-
solubilized recombinant His-tagged enzyme from Escherichia coli cells by metal affinity chromatography, or the enzyme is simultaneously further purified, refolded and buffer-exchanged on a preparative Superdex 200 column by a modified urea reverse-gradient gel filtration
-
to homogeneity
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CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
expression in Escherichia coli
expression of mutants E141D, E141Q, E141G, H223G, H223E, and H223L in Escherichia coli JM109
gene lasB, recombinant expression in Escherichia coli and in Pichia pastoris and secretion of the enzyme, large-scale expression of His-tagged enzyme under the control of the T7 promoter in Escherichia coli strain BL21(DE3) in inclusion bodies
-
recombinant enzyme expression in Pichia pastoris with heterogeneous N-glycosylation, expression of enzyme glycosylation site mutants
-
recombinant expression of wild-type and mutant enzymes in Escherichia coli strain BL21 (DE3)
-
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EXPRESSION
ORGANISM
UNIPROT
LITERATURE
it is possible that the induction of LasB production is increased by the combined regulatory activities of the Las and Rhl systems in a manner not applicable to AprA
it is possible that the induction of LasB production is increased by the combined regulatory activities of the Las and Rhl systems in a manner not applicable to AprA
it is possible that the induction of LasB production is increased by the combined regulatory activities of the Las and Rhl systems in a manner not applicable to AprA
-
-
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RENATURED/Commentary
ORGANISM
UNIPROT
LITERATURE
solubilization of recombinant His-tagged enzyme from strain BL21(DE3) in inclusion bodies by 8 M urea
-
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APPLICATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
biotechnology
diagnostics
-
specific protease activity of the enzyme as indicator for the degree of Pseudomonas aeruginosa infection in chronic infected wounds
industry
medicine
nutrition
pharmacology
-
branched antimicrobial peptide M33 pegylation at the C-terminus of the three lysine-branching core with a Peg4 molecule and the resulting increase in stability to Pseudomonas aeruginosa elastase, peptide resistance to this protease is an important feature for M33-Peg activity against Pseudomonas aeruginosa
synthesis
biotechnology
-
A2 protease is usable for shrimp waste deproteinization in the process of chitin preparation, percent of protein removal after 3 h hydrolysis at 40°C with an enzyme/substrate ratio of 5 U/mg protein is about 75%. A2 proteolytic preparation also demonstrates powerful depilating capabilities of hair removal from bovine skin
biotechnology
-
A2 protease is usable for shrimp waste deproteinization in the process of chitin preparation, percent of protein removal after 3 h hydrolysis at 40°C with an enzyme/substrate ratio of 5 U/mg protein is about 75%. A2 proteolytic preparation also demonstrates powerful depilating capabilities of hair removal from bovine skin
-
industry
-
A2 protease is usable for shrimp waste deproteinization in the process of chitin preparation, percent of protein removal after 3 h hydrolysis at 40°C with an enzyme/substrate ratio of 5 U/mg protein is about 75%. A2 proteolytic preparation also demonstrates powerful depilating capabilities of hair removal from bovine skin
industry
-
pseudolysin is a biotechnologically important enzyme in the tanning industry
industry
potential application in the leather industry and as a therapeutic agent
industry
-
A2 protease is usable for shrimp waste deproteinization in the process of chitin preparation, percent of protein removal after 3 h hydrolysis at 40°C with an enzyme/substrate ratio of 5 U/mg protein is about 75%. A2 proteolytic preparation also demonstrates powerful depilating capabilities of hair removal from bovine skin
-
industry
Pseudomonas aeruginosa MCCB 123
-
potential application in the leather industry and as a therapeutic agent
-
medicine
2-mercaptoacetyl-L-phenylalanyl-L-leucine represents a class of potent elastase inhibitors that might prove useful in the management of Pseudomonas aeruginosa infections
medicine
application of the inhibitors may be helpful in the management of corneal infections with Pseudomonas aeruginosa
medicine
Inflammation and consequent lung dysfunction are hallmarks of recurrent Pseudomonas aeruginosa infections in cystic fibrosis lungs. The continued presence of bacterial components, including PE, can evoke an ongoing host inflammatory response by induction of inflammatory cytokinines and chemokinines such as interleukin-8. Although this cytokinine is essential for an effective host defense, continuous neutrophil transmigration and degranulation will damage the lung tissue through neutrophil-derived proteases. Therefore, the use of specific antibody against Pseudomonas elastase as adjuvant therapy along with antibacterial agents can prove an effective approach in the treatment of chronic Pseudomonas aeruginosa infection.
medicine
-
phosphoramidon, the inhibitor of the enzyme, may prove beneficial in the treatment of Pseudomonas aeruginosa corneal infections
medicine
the inhibitor may have a therapeutic application by delaying the progression of corneal destruction in Pseudomonas keratitis
medicine
-
the inhibitor of the enzyme, 2-mercaptoacetyl-L-phenyalanyl-L-leucine, has therapeutic potential as an adjunct to antibiotics treatment of Pseudomonas keratitis in rabbits
medicine
the protective activity of elastase mutants against Pseudomonas infections may be useful in producing vaccines
medicine
enzyme can silence the function of proteinase-activated receptor-2 in the respiratory tract, thereby altering the host innate defense mechanisms and respiratory functions, and thus contributing to the setting of a disease like cystic fibrosis
medicine
-
Pseudomonas aeruginosa cytotoxic elastase is enhanced in the presence of the filamentous fungi Aspergillus fumigatus, suggesting that this may have a role to play in the damaging pathology associated with the lung tissue in this disease. This indicates that patients who have a co-colonisation with these two organisms may have a poorer prognosis
medicine
-
the enzyme is a promising target for the development of new anti-virulence compounds
nutrition
-
pseudolysin is an enzyme cleaving gluten effectively at extremely low as well as near neutral pH values. The potential to degrade gluten during gastric transport opens possibilities for its application as a therapeutic agent for the treatment of celiac disease
nutrition
Acinetobacter junii FA10
-
pseudolysin is an enzyme cleaving gluten effectively at extremely low as well as near neutral pH values. The potential to degrade gluten during gastric transport opens possibilities for its application as a therapeutic agent for the treatment of celiac disease
-
synthesis
-
the Pseudomonas aeruginosa elastase, produced by Pichia pastoris, is a promising biocatalyst for peptide synthesis in organic solvents
synthesis
WP_084338031.1
the enzyme can be applied to obtain bioactive soluble peptides from eggshell-membrane. Potential applicability of its peptides as functional food and cosmetic additives
synthesis
-
the enzyme can be applied to obtain bioactive soluble peptides from eggshell-membrane. Potential applicability of its peptides as functional food and cosmetic additives
-
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REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Nishino, N.; Powers, J.C.
Pseudomonas aeruginosa elastase. Development of a new substrate, inhibitors, and an affinity ligand
J. Biol. Chem.
255
3482-3486
1980
Pseudomonas aeruginosa
brenda
Black, W.J.; Quinn, F.; Tompkins, L.S.
Legionella pneumophila zinc metalloprotease is structurally and functionally homologous to Pseudomonas aeruginosa elastase
J. Bacteriol.
172
2608-2613
1990
Legionella pneumophila
brenda
Morihara, K.; Tsuzuki, H.
Pseudomonas aeruginosa elastase. Affinity chromatography and some properties as a metalloneutral proteinase
Agric. Biol. Chem.
39
1123-1128
1975
Pseudomonas aeruginosa
-
brenda
Morihara, K.
Pseudolysin and other pathogen endopeptidases of thermolysin family
Methods Enzymol.
248
242-253
1995
Pseudomonas aeruginosa, Vibrio cholerae serotype O1
brenda
Bever, R.A.; Iglewski, B.H.
Molecular characterization and nucleotide sequence of the Pseudomonas aeruginosa elastase structural gene
J. Bacteriol.
170
4309-4314
1988
Pseudomonas aeruginosa
brenda
Kessler, E.; Safrin, M.; Gustin, J.K.; Ohman, D.E.
Elastase and the LasA protease of Pseudomonas aeruginosa are secreted with their propeptides
J. Biol. Chem.
273
30225-30231
1998
Pseudomonas aeruginosa
brenda
Mariencheck, W.I.; Alcorn, J.F.; Palmer, S.M.; Wright, J.R.
Pseudomonas aeruginosa elastase degrades surfactant proteins A and D
Am. J. Respir. Cell Mol. Biol.
28
528-537
2003
Pseudomonas aeruginosa (P14756), Pseudomonas aeruginosa
brenda
Dulon, S.; Leduc, D.; Cottrell, G.S.; D'Alayer, J.; Hansen, K.K.; Bunnett, N.W.; Hollenberg, M.D.; Pidard, D.; Chignard, M.
Pseudomonas aeruginosa elastase disables proteinase-activated receptor 2 in respiratory epithelial cells
Am. J. Respir. Cell Mol. Biol.
32
411-419
2005
Pseudomonas aeruginosa, Pseudomonas aeruginosa (P14756)
brenda
Besson, C.; Saulnier, J.; Wallach, J.M.
Synthetic peptide substrates for a conductimetric assay of Pseudomonas aeruginosa elastase
Anal. Biochem.
237
216-223
1996
Pseudomonas aeruginosa (P14756), Pseudomonas aeruginosa