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isochorismate + H2O = (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
isochorismate + H2O = (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
-
isochorismate + H2O = (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
(1,5)-sigmatropic reaction mechanism that invokes electrostatic catalysis
-
isochorismate + H2O = (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
extended active site is formed by inter-subunit association within a tetramer
-
isochorismate + H2O = (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
extended active site is formed by inter-subunit association within a tetramer
-
isochorismate + H2O = (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
extended active site is formed by inter-subunit association within a tetramer
-
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(+/-)-3-[(1-carboxyethenyl)oxy]-2-hydroxy-6-cyclohexene-1-carboxylic acid + H2O
3,4-dihydroxy-cyclohex-1-enecarboxylic acid + pyruvate
-
-
-
?
(+/-)-3-[(1-carboxyethenyl)oxy]-cyclohepta-1,6-diene-1-carboxylate + H2O
(S)-3-hydroxy-cyclohepta-1,6-dienecarboxylic acid + pyruvate
-
i.e. (S)-3-(1-carboxyvinyloxy)-cyclohepta-1,6-dienecarboxylic acid
-
?
(+/-)-3-[(carboxyethenyl)oxy]-1-cyclohexene-1-carboxylic acid + H2O
(S)-3-hydroxycyclohex-1-enecarboxylic acid + pyruvate
-
-
-
?
(+/-)-cis-3-[(carboxyethenyl)oxy]-4-cyclohexene-1-carboxylic acid + H2O
(R)-5-hydroxycyclohex-3-enecarboxylic acid + pyruvate
-
-
-
?
Chorismate
Prephenate
-
promiscuous reaction
-
-
?
chorismate + H2O
3,4-dihydroxy-cyclohexa-1,5-dienecarboxylic acid + pyruvate
-
slow hydrolysis
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
biosynthesis of enterobactin
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
main reaction
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
isochorismatase converts isochorismate, in the presence of water, to 2,3-dihydroxybenzoate and pyruvate and inhibits salicylic acid formation
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
-
?
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isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
(2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
biosynthesis of enterobactin
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
-
-
-
?
isochorismate + H2O
2,3-dihydroxy-2,3-dihydrobenzoate + pyruvate
-
isochorismatase converts isochorismate, in the presence of water, to 2,3-dihydroxybenzoate and pyruvate and inhibits salicylic acid formation
-
-
?
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(+/-)-3-[(carboxyethenyl)oxy]-6-hydroxy-1-benzoic acid
-
i.e. 5-(1-carboxyvinyloxy)-2-hydroxybenzoic acid
3-[(carboxyethenyl)oxy]benzoic acid
-
i.e. 3-(1-carboxyvinyloxy)benzoic acid
disodium 3-(2-carboxylatoethyl)benzoate
-
-
disodium 3-[(E)-2-carboxylatoethenyl]benzoate
-
-
additional information
structure-based design of virulence inhibitors against Vibrio anguillarum, overview. The isochorismatase family can bind endogenous metabolite during the hetero-expression process, which is likely nicotinic acid, nicotinamide or pyrazinic acid, based on structural analysis and affinity prediction; structure-based design of virulence inhibitors against Vibrio anguillarum, overview. The isochorismatase family can bind endogenous metabolite during the hetero-expression process, which is likely nicotinic acid, nicotinamide or pyrazinic acid, based on structural analysis and affinity prediction
-
additional information
structure-based design of virulence inhibitors against Vibrio anguillarum, overview. The isochorismatase family can bind endogenous metabolite during the hetero-expression process, which is likely nicotinic acid, nicotinamide or pyrazinic acid, based on structural analysis and affinity prediction; structure-based design of virulence inhibitors against Vibrio anguillarum, overview. The isochorismatase family can bind endogenous metabolite during the hetero-expression process, which is likely nicotinic acid, nicotinamide or pyrazinic acid, based on structural analysis and affinity prediction
-
additional information
-
structure-based design of virulence inhibitors against Vibrio anguillarum, overview. The isochorismatase family can bind endogenous metabolite during the hetero-expression process, which is likely nicotinic acid, nicotinamide or pyrazinic acid, based on structural analysis and affinity prediction; structure-based design of virulence inhibitors against Vibrio anguillarum, overview. The isochorismatase family can bind endogenous metabolite during the hetero-expression process, which is likely nicotinic acid, nicotinamide or pyrazinic acid, based on structural analysis and affinity prediction
-
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metabolism
-
the biosynthesis of salicylic acid in plants occurs through phenylpropanoid and isochorismate pathways
physiological function
-
isochorismatase hydrolase may be acting as a plant-defense suppressor produced by the highly aggressive isolate to overcome host resistance
physiological function
isochorismatase (ISC) converts isochorismate to (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate, which is a critical step for the siderophore synthesis. Two different siderophores, anguibactin and vanchrobactin, are described in Vibrio anguillarum, both siderophores belong to the catecholate group, sharing a 2,3-dihydroxybenzoic acid (DHBA) moiety
physiological function
-
isochorismatase (ISC) converts isochorismate to (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate, which is a critical step for the siderophore synthesis. Two different siderophores, anguibactin and vanchrobactin, are described in Vibrio anguillarum, both siderophores belong to the catecholate group, sharing a 2,3-dihydroxybenzoic acid (DHBA) moiety
-
physiological function
-
isochorismatase (ISC) converts isochorismate to (2S,3S)-2,3-dihydroxy-2,3-dihydrobenzoate, which is a critical step for the siderophore synthesis. Two different siderophores, anguibactin and vanchrobactin, are described in Vibrio anguillarum, both siderophores belong to the catecholate group, sharing a 2,3-dihydroxybenzoic acid (DHBA) moiety
-
additional information
isochorismatase domains of AngB and VabB from Vibrio anguillarum, which are required to synthesize the critical virulence factor siderophore, are highly similar to known isochorismatases in fold and active site. Active site structure analysis, overview
additional information
isochorismatase domains of AngB and VabB from Vibrio anguillarum, which are required to synthesize the critical virulence factor siderophore, are highly similar to known isochorismatases in fold and active site. Active site structure analysis, overview
additional information
-
isochorismatase domains of AngB and VabB from Vibrio anguillarum, which are required to synthesize the critical virulence factor siderophore, are highly similar to known isochorismatases in fold and active site. Active site structure analysis, overview
additional information
-
isochorismatase domains of AngB and VabB from Vibrio anguillarum, which are required to synthesize the critical virulence factor siderophore, are highly similar to known isochorismatases in fold and active site. Active site structure analysis, overview
-
additional information
-
isochorismatase domains of AngB and VabB from Vibrio anguillarum, which are required to synthesize the critical virulence factor siderophore, are highly similar to known isochorismatases in fold and active site. Active site structure analysis, overview
-
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?
-
x * 32400, calculated, x * 37000., SDS-PAGE
dimer
-
dimer
2 * 19700, calculated, 2 * 20000, SDS-PAGE
hexamer
six polypeptide chains are located in one asymmetric unit and appear to form hexamer, a trimer of dimers, for each monomer, the helix-sheet-helix sandwich architecture is determined
hexamer
-
six polypeptide chains are located in one asymmetric unit and appear to form hexamer, a trimer of dimers, for each monomer, the helix-sheet-helix sandwich architecture is determined
-
hexamer
-
six polypeptide chains are located in one asymmetric unit and appear to form hexamer, a trimer of dimers, for each monomer, the helix-sheet-helix sandwich architecture is determined
-
homodimer
x-ray crystallography
homodimer
intersubunit interaction analysis
homodimer
-
intersubunit interaction analysis
-
homodimer
-
intersubunit interaction analysis
-
pentamer
-
5 * 32554, sequence of DNA
pentamer
-
5 * 35000, SDS-PAGE
additional information
-
extended active site is formed by inter-subunit association within a tetramer
additional information
-
extended active site is formed by inter-subunit association within a tetramer
additional information
-
extended active site is formed by inter-subunit association within a tetramer
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the crystal structure of the EntB protein is determined at a resolution of 2.3 A
purified recombinant detagged AngB-ISC, sitting drop vapor diffusion, mixing of 18 mg/ml protein in 10 mM HEPES, pH 7.5, 500 mM NaCl, and 1 mM DTT, with reservoir solution containing 0.1 M Tris-HCl, pH 8.5, 2 M Li2SO4, and 2% PEG 400, at 20°C, X-ray diffraction structure determination and analysis, molecular replacement using structure VibB-ISC (PDB ID 3TB4) as the searching model, with two monomers in an asymmetric unit
purified recombinant detagged VabB-ISC, sitting drop vapor diffusion, mixing of 18 mg/ml protein in 10 mM HEPES, pH 7.5, 150 mM NaCl, and 1 mM DTT, with reservoir solution containing 10% PEG 8000, 0.1 M imidazole, and 0.2 M calcium acetate, at 20°C, X-ray diffraction structure determination and analysis, molecular replacement using the AngB-ISC dimer as search model
sitting drop vapor diffusion method, using 50 mM CaCl2, 0.1 M bis-Tris pH 6.5, 28% (w/v) polyethylene glycol monomethyl ether 550, 1% (w/v) n-octyl-beta-D-glucoside at 20°C
-
-
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D227R
mutant constructed for functional analysis of EntB-EntE interaction
D240R
mutant constructed for functional analysis of EntB-EntE interaction
D244R
mutant constructed for functional analysis of EntB-EntE interaction
D263R
mutant constructed for functional analysis of EntB-EntE interaction
F264E
mutant constructed for functional analysis of EntB-EntE interaction
I239D
mutant constructed for functional analysis of EntB-EntE interaction
K269E
mutant constructed for functional analysis of EntB-EntE interaction
M249E
mutant constructed for functional analysis of EntB-EntE interaction
R247E
mutant constructed for functional analysis of EntB-EntE interaction
S245A
mutant constructed for functional analysis of EntB-EntE interaction
C118A
complete loss of activity
D9A
complete loss of activity
H51A
complete loss of activity
K84A
9% decrease in activity compared to wild-type
Q11A
20% decrease in activity compared to wild-type
Q91N
-
4fold reduction in kcat-value of enzymic activity, 10fold reduction in chorismate mutase activity
R54K
-
1000fold reduction in enzymic and in chorismate mutase activity
D35N
the mutation results in almost complete loss of enzyme activity
H34A
the mutant has about 80% of wild type activity
H34N
the mutant has about 35% of wild type activity
K118A
the mutant has about 30% of wild type activity
K118H
the mutation results in almost complete loss of enzyme activity
K118N
the mutation results in almost complete loss of enzyme activity
D35N
-
the mutation results in almost complete loss of enzyme activity
-
H34A
-
the mutant has about 80% of wild type activity
-
K118A
-
the mutant has about 30% of wild type activity
-
K118H
-
the mutation results in almost complete loss of enzyme activity
-
K118N
-
the mutation results in almost complete loss of enzyme activity
-
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Young, I.G.; Gibson, F.
Regulation of the enzymes involved in the biosynthesis of 2,3-dihydroxybenzoic acid in Aerobacter aerogenes and Escherichia coli
Biochim. Biophys. Acta
177
401-411
1969
Klebsiella aerogenes
brenda
Rusnak, F.; Liu, J.; Quinn, N.; Berchtold, G.A.; Walsh, C.T.
Subcloning of the enterobactin biosynthetic gene entB: expression, purification, characterization, and substrate specificity of isochorismatase
Biochemistry
29
1425-1435
1990
Escherichia coli
brenda
Nahlik, M.S.; Fleming, T.P.; McIntosh, M.A.
Cluster of genes controlling synthesis and activation of 2,3-dihydroxybenzoic acid in production of enterobactin in Escherichia coli
J. Bacteriol.
169
4163-4170
1987
Escherichia coli
brenda
Hantash, F.M.; Earhart, C.F.
Membrane association of the Escherichia coli enterobactin synthase proteins EntB/G, EntE, and EntF
J. Bacteriol.
182
1768-1773
2000
Escherichia coli
brenda
Muller, R.; Breuer, M.; Wagner, A.; Schmidt, K.; Leistner, E.
Bacterial production of transdihydroxycyclohexadiene carboxylates by metabolic pathway engineering
Microbiology
142
1005-1012
1996
Klebsiella pneumoniae
-
brenda
Welch, T.J.; Chai, S.; Crosa, J.H.
The overlapping angB and angG genes are encoded within the trans-acting factor region of the virulence plasmid in Vibrio anguillarum: essential role in siderophore biosynthesis
J. Bacteriol.
182
6762-6773
2000
Vibrio anguillarum
brenda
Kunzler, D.E.; Sasso, S.; Gamper, M.; Hilvert, D.; Kast, P.
Mechanistic insights into the isochorismate pyruvate lyase activity of the catalytically promiscuous PchB from combinatorial mutagenesis and selection
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280
32827-32834
2005
Pseudomonas aeruginosa
brenda
Caruthers, J.; Zucker, F.; Worthey, E.; Myler, P.J.; Buckner, F.; Van Voorhuis, W.; Mehlin, C.; Boni, E.; Feist, T.; Luft, J.; Gulde, S.; Lauricella, A.; Kaluzhniy, O.; Anderson, L.; Le Trong, I.; Holmes, M.A.; Earnest, T.; Soltis, M.; Hodgson, K.O.; Hol, W.G.; Merritt, E.A.
Crystal structures and proposed structural/functional classification of three protozoan proteins from the isochorismatase superfamily
Protein Sci.
14
2887-2894
2005
Leishmania donovani, Leishmania major, Trypanosoma cruzi
brenda
Drake, E.J.; Nicolai, D.A.; Gulick, A.M.
Structure of the EntB multidomain nonribosomal peptide synthetase and functional analysis of its interaction with the EntE adenylation domain
Chem. Biol.
13
409-419
2006
Escherichia coli (P0ADI4)
brenda
Huang, X.; Shi, Z.; Wang, W.; Bai, J.; Chen, Z.; Xu, J.; Zhang, D.; Fu, S.
Identification and characterization of a novel protein ISOC2 that interacts with p16INK4a
Biochem. Biophys. Res. Commun.
361
287-293
2007
Homo sapiens, Mus musculus
brenda
Maruyama, C.; Hamano, Y.
The biological function of the bacterial isochorismatase-like hydrolase SttH
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73
2494-2500
2009
Verticillium dahliae
brenda
Hubrich, F.; Mordhorst, S.; Andexer, J.N.
Cinnamic acid derivatives as inhibitors for chorismatases and isochorismatases
Bioorg. Med. Chem. Lett.
23
1477-1481
2013
Escherichia coli
brenda
Liu, S.; Zhang, C.; Li, N.; Niu, B.; Liu, M.; Liu, X.; Wie, T.; Zhu, D.; Huang, Y.; Xu, S.; Gu, L.
Structural insight into the ISC domain of VibB from Vibrio cholerae at atomic resolution: a snapshot just before the enzymatic reaction
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68
1329-1338
2012
Vibrio cholerae (P0C6D3), Vibrio cholerae, Vibrio cholerae N16961 (P0C6D3)
brenda
Goral, A.M.; Tkaczuk, K.L.; Chruszcz, M.; Kagan, O.; Savchenko, A.; Minor, W.
Crystal structure of a putative isochorismatase hydrolase from Oleispira antarctica
J. Struct. Funct. Genomics
13
27-36
2012
Oleispira Antarctica (L7MTK1), Oleispira Antarctica
brenda
Wang, J.; Zhu, Y.; Zhao, G.; Zhu, J.; Wu, S.
Characterization of a recombinant (+)-gamma-lactamase from Microbacterium hydrocarbonoxydans which provides evidence that two enantiocomplementary gamma-lactamases are in the strain
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99
3069-3080
2015
Microbacterium hydrocarbonoxydans (A0A077AY47), Microbacterium hydrocarbonoxydans
brenda
Du, J.; Deng, T.; Ma, Q.
Crystal structures of the isochorismatase domains from Vibrio anguillarum
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490
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2017
Vibrio anguillarum (Q5DK16), Vibrio anguillarum (Q6W4P9), Vibrio anguillarum, Vibrio anguillarum 775 (Q5DK16), Vibrio anguillarum 775 (Q6W4P9), Vibrio anguillarum ATCC 68554 (Q5DK16), Vibrio anguillarum ATCC 68554 (Q6W4P9)
brenda