Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
D-alanine + pyridoxal 5'-phosphate
pyridoxamine 5'-phosphate + pyruvate
-
Substrates: L-alanine and other D- and L-amino acids tested are inert as substrates of transamination
Products: -
r
additional information
?
-
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: last step of the 4-aminobenzoate branch
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: re-face specificity
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: the enzyme catalyzes the beta-elimination of pyruvate and the aromatization of the ADC ring to yield 4-aminobenzoate. Substrate synthesis from chorismate and ammonia by chorismate aminase in a coupled assay, the substrate is unstable
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: molecular modeling of the catalytic intermediate, overview
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: simulation and validation of the substrate-binding model, overview
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: last step of the 4-aminobenzoate branch
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
additional information
?
-
Substrates: The enzyme shows some transaminase activity towards different D-amino acids (D-Asp, D-Ala and D-Glu, in particular) using 2-oxoacids such as oxaloacetate or pyruvate as amino group acceptors. This activity corresponds to EC 2.6.1.21.
Products: -
?
additional information
?
-
-
Substrates: The enzyme shows some transaminase activity towards different D-amino acids (D-Asp, D-Ala and D-Glu, in particular) using 2-oxoacids such as oxaloacetate or pyruvate as amino group acceptors. This activity corresponds to EC 2.6.1.21.
Products: -
?
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
D-alanine + pyridoxal 5'-phosphate
pyridoxamine 5'-phosphate + pyruvate
-
Substrates: L-alanine and other D- and L-amino acids tested are inert as substrates of transamination
Products: -
r
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: last step of the 4-aminobenzoate branch
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
Substrates: -
Products: -
?
4-amino-4-deoxychorismate
4-aminobenzoate + pyruvate
-
Substrates: last step of the 4-aminobenzoate branch
Products: -
?
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
physiological function
the enzyme is active in folate biosynthesis and essential for the cell growth of the pathogen
evolution
4-amino-4-deoxychorismate lyases can be divided into two classes of dimeric and monomeric enzyme, respectively
evolution
structure comparisons with related enzymes, overview. PabC enzymes can be classified into two groups depending upon whether an active site and structurally conserved tyrosine is provided from the polypeptide that mainly forms an active site or from the partner subunit in the dimeric assembly
metabolism
-
key enzyme in the biosynthesis of 4-aminobenzoate
metabolism
-
key enzyme in the biosynthesis of 4-aminobenzoate
-
additional information
structure-activity relationship of PabC, ligand binding modeling and reaction mechanism, overview. No structure of PabC in complex with ligands is achieved, but a computational model of the catalytic intermediate docked into the enzyme active site is generated. A conserved tyrosine helps to create a hydrophobic wall on one side of the active site that provides important interactions to bind the catalytic intermediate, but it does not appear to participate in interactions with the C atom that undergoes an sp2 to sp3 conversion as pyruvate is produced. An active site threonine hydroxyl contributes a proton used in the reduction of the substrate methylene to pyruvate methyl in the final stage of the mechanism
additional information
-
structure-activity relationship of PabC, ligand binding modeling and reaction mechanism, overview. No structure of PabC in complex with ligands is achieved, but a computational model of the catalytic intermediate docked into the enzyme active site is generated. A conserved tyrosine helps to create a hydrophobic wall on one side of the active site that provides important interactions to bind the catalytic intermediate, but it does not appear to participate in interactions with the C atom that undergoes an sp2 to sp3 conversion as pyruvate is produced. An active site threonine hydroxyl contributes a proton used in the reduction of the substrate methylene to pyruvate methyl in the final stage of the mechanism
additional information
the catalytic residue Lys251 covalently binds the cofactor pyridoxal 5'-phosphate
additional information
-
the catalytic residue Lys251 covalently binds the cofactor pyridoxal 5'-phosphate
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
small yellow prisms crystals in the unliganded form obtained using the sparse-matrix method along with the hanging-drop vapor-difussion method
-
purified recombinant detagged enzyme, hanging drop vapour diffusion method, mixing of 0.001 ml of 33 mg/mL prrotein in 100 mM HEPES, pH 7.5, 500 mM NaCl, 0.1 mM pyridoxal 5'-phosphate, and 10 mM 4-aminobenzoate, with 0001 ml of reservoir solution containing 10% w/v PEG 400, 1.8 M ammonium sulfate and 100 mM MES, pH 6.5, 20°C, 1 week, X-ray diffraction structure dtermination and analysis at 1.75 A resolution
purified recombinant selenomethionine-labeled enzyme and of purified recombinant wild-type enzyme in complex with cofactor pyridoxal 5'-phosphate, hanging drop vapor diffusion method, mixing of 0.001 ml of 10 mg/ml protein in 100 mM NaCl, 20 mM Tris-Cl, pH 8.0, with an equal volume of reservoir solution containing 20% w/v PEG monomethyl ether 5000, 0.1 M Bis-Tris, pH 6.2, 1-2 days to 1 week, 16°C, X-ray diffraction structure determination and analysis at 1.90-2.20 A resolution
sitting drop vapor diffusion method, using 0.1 M HEPES buffer pH 8.0 containing 1.3 M Li2SO4 and 2% (v/v) PEG 200
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
K180A
site-directed mutagenesis, the mutant shows reduced activity compared to the wild-type enzyme
N360A
site-directed mutagenesis, inactive mutant
N360D
site-directed mutagenesis, inactive mutant
T30A
site-directed mutagenesis, the mutant shows reduced activity compared to the wild-type enzyme
additional information
-
a mutant with pabC-1 inactivated still retains about 20% of the wild type level of antibiotic FR-008 production, pabC-1/pabC-2 double mutation severely reduces antibiotic FR-008 production and renders the mutant p-aminobenzoic acid-auxotrophic
additional information
a mutant with pabC-1 inactivated still retains about 20% of the wild type level of antibiotic FR-008 production, pabC-1/pabC-2 double mutation severely reduces antibiotic FR-008 production and renders the mutant p-aminobenzoic acid-auxotrophic
additional information
-
pabC-1/pabC-2 double mutation severely reduces antibiotic FR-008 production and renders the mutant p-aminobenzoic acid-auxotrophic
additional information
pabC-1/pabC-2 double mutation severely reduces antibiotic FR-008 production and renders the mutant p-aminobenzoic acid-auxotrophic
additional information
-
a mutant with pabC-1 inactivated still retains about 20% of the wild type level of antibiotic FR-008 production, pabC-1/pabC-2 double mutation severely reduces antibiotic FR-008 production and renders the mutant p-aminobenzoic acid-auxotrophic
-
additional information
-
pabC-1/pabC-2 double mutation severely reduces antibiotic FR-008 production and renders the mutant p-aminobenzoic acid-auxotrophic
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
DEAE-Sephacel, phenyl-Sepharose column, Superose 6 gel filtration column, Mono Q, Superose 12 column, yield 400-800fold
-
fractionation with ammonium sulfate pH 7.5, DEAE-Sephacel column, butyl-Sepharose 4B column, Gigapite column
-
fractionation with ammonium sulfate, DEAE-Toyopearl column, butyl-Toyopearl column and Mono Q column
-
nickel affinity column chromatography
reactive yellow 3-agarose column, Mono Q HR 5/5 FPLC column, Superose 12HR 10/30 FPLC column, Mono Q HR 5/20 FPLC column, Aquapore RP-300 C8 HPLC column: 4100fold to near homogeneity
-
recombinant His-tagged wild-type and selenomethionine-labeled enzymes from Escherichia coli strain BL21(DE3) and B834(DE3), respectively, by nickel affinity chromatography
recombinant His6-tagged enzyme from Escherichia coli by metal affinity chromatography
recombinant His6-tagged enzyme from Escherichia coli strain BL21(DE3) GOLD by nickel affinity chromatography, cleavage of the tag by TEV protease, and gel filtration
Resource ISO column chromatography, ammonium sulfate precipitation, Resource Q column chromatography, and Superdex 75 gel filtration
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Ye, Q.Z.; Liu, J.; Walsh, C.T.
p-Aminobenzoate synthesis in Escherichia coli: purification and characterization of PabB as aminodeoxychorismate synthase and enzyme X as aminodeoxychorismate lyase
Proc. Natl. Acad. Sci. USA
87
9391-9395
1990
Escherichia coli
brenda
Green, J.M.; Merkel, W.K.; Nichols, B.P.
Characterization and sequence of Escherichia coli pabC, the gene encoding aminodeoxychorismate lyase, a pyridoxal phosphate-containing enzyme
J. Bacteriol.
174
5317-5323
1992
Escherichia coli (P28305), Escherichia coli
brenda
Green, J.M.; Nichols, B.P.
p-Aminobenzoate biosynthesis in Escherichia coli. Purification of aminodeoxychorismate lyase and cloning of pabC
J. Biol. Chem.
266
12971-12975
1991
Escherichia coli
brenda
Viswanathan, V.K.; Green, J.M.; Nicholas, B.P.
Kinetic characterization of 4-amino 4-deoxychorismate synthase from Escherichia coli
J. Bacteriol.
177
5918-5923
1995
Escherichia coli
brenda
Nakai, T.; Mizutani, H.; Miyahara, I.; Hirotsu, K.; Takeda, S.; Jhee, K.H.; Yoshimura, T.; Esaki, N.
Three-dimensional structure of 4-amino-4-deoxychorismate lyase from Escherichia coli
J. Biochem.
128
29-38
2000
Escherichia coli
brenda
Jhee, K.H.; Yoshimura, T.; Miles, E.W.; Takeda, S.; Miyahara, I.; Hirotsu, K.; Soda, K.; Kawata, Y.; Esaki, N.
Stereochemistry of the transamination reaction catalyzed by aminodeoxychorismate lyase from Escherichia coli: close relationship between fold type and stereochemistry
J. Biochem.
128
679-686
2000
Escherichia coli
brenda
Nichols, B.P.; Green, J.M.
Cloning and sequencing of Escherichia coli ubiC and purification of chorismate lyase
J. Bacteriol.
174
5309-5316
1992
Escherichia coli
brenda
Basset, G.J.; Ravanel, S.; Quinlivan, E.P.; White, R.; Giovannoni, J.J.; Rebeille, F.; Nichols, B.P.; Shinozaki, K.; Seki, M.; Gregory, J.F., 3rd; Hanson, A.D.
Folate synthesis in plants: the last step of the p-aminobenzoate branch is catalyzed by a plastidial aminodeoxychorismate lyase
Plant J.
40
453-461
2004
Arabidopsis thaliana, Solanum lycopersicum
brenda
Padmanabhan, B.; Bessho, Y.; Ebihara, A.; Antonyuk, S.V.; Ellis, M.J.; Strange, R.W.; Kuramitsu, S.; Watanabe, N.; Hasnain, S.S.; Yokoyama, S.
Structure of putative 4-amino-4-deoxychorismate lyase from Thermus thermophilus HB8
Acta Crystallogr. Sect. F
65
1234-1239
2009
Thermus thermophilus (Q5SKM2), Thermus thermophilus HB8 / ATCC 27634 / DSM 579 (Q5SKM2)
brenda
Zhang, Y.; Bai, L.; Deng, Z.
Functional characterization of the first two actinomycete 4-amino-4-deoxychorismate lyase genes
Microbiology
155
2450-2459
2009
Streptomyces sp., Streptomyces sp. (B8Y8J0), Streptomyces sp. FR-008, Streptomyces sp. FR-008 (B8Y8J0)
brenda
Magnani, G.; Lomazzi, M.; Peracchi, A.
Completing the folate biosynthesis pathway in Plasmodium falciparum: p-aminobenzoate is produced by a highly divergent promiscuous aminodeoxychorismate lyase
Biochem. J.
455
149-155
2013
Plasmodium falciparum (Q8IKP7), Plasmodium falciparum
brenda
Dai, Y.N.; Chi, C.B.; Zhou, K.; Cheng, W.; Jiang, Y.L.; Ren, Y.M.; Ruan, K.; Chen, Y.; Zhou, C.Z.
Structure and catalytic mechanism of yeast 4-amino-4-deoxychorismate lyase
J. Biol. Chem.
288
22985-22992
2013
Saccharomyces cerevisiae (Q03266), Saccharomyces cerevisiae
brenda
ORourke, P.E.; Eadsforth, T.C.; Fyfe, P.K.; Shepherd, S.M.; Hunter, W.N.
Pseudomonas aeruginosa 4-amino-4-deoxychorismate lyase: spatial conservation of an active site tyrosine and classification of two types of enzyme
PLoS ONE
6
e24158
2011
Pseudomonas aeruginosa (Q9HZN6), Pseudomonas aeruginosa
brenda
Shahbaaz, M.; Ahmad, F.; Imtaiyaz Hassan, M.
Structure-based functional annotation of putative conserved proteins having lyase activity from Haemophilus influenzae
3 Biotech
5
317-336
2015
Haemophilus influenzae, Haemophilus influenzae RD KW20
brenda
Culbertson, J.; Chung, D.; Ziebart, K.; Espiritu, E.; Toney, M.
Conversion of aminodeoxychorismate synthase into anthranilate synthase with Janus mutations Mechanism of pyruvate elimination catalyzed by chorismate enzymes
Biochemistry
54
2372-2384
2015
Escherichia coli
brenda