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EC Tree
IUBMB Comments The enzyme, characterized from the bacterium Pseudomonas alcaligenes NCIMB 9867, catalyses the hydrolysis of 3-maleylpyruvate, the ring-cleavage product of gentisate. The enzyme can also act on a number of maleylpyruvate derivatives, such as (2E)-2-methyl-4,6-dioxohept-2-enedioate and (2E)-3-methyl-4,6-dioxohept-2-enedioate. Activated by Mn2+. May be identical to EC 3.7.1.5, acylpyruvate hydrolase.
The enzyme appears in viruses and cellular organisms
Synonyms
hbzF , maleylpyruvate hydrolase, maleylpyruvate hydrolase I, maleylpyruvate hydrolase II, Mph, MPH11,
SLG_11280 ,
more
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maleylpyruvate hydrolase I
maleylpyruvate hydrolase II
hbzF
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maleylpyruvate hydrolase
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maleylpyruvate hydrolase
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maleylpyruvate hydrolase I
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maleylpyruvate hydrolase I
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maleylpyruvate hydrolase II
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maleylpyruvate hydrolase II
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Mph
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MPH11
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3-maleylpyruvate + H2O = maleate + pyruvate
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(2Z)-4,6-dioxohept-2-enedioate acylhydrolase
The enzyme, characterized from the bacterium Pseudomonas alcaligenes NCIMB 9867, catalyses the hydrolysis of 3-maleylpyruvate, the ring-cleavage product of gentisate. The enzyme can also act on a number of maleylpyruvate derivatives, such as (2E)-2-methyl-4,6-dioxohept-2-enedioate and (2E)-3-methyl-4,6-dioxohept-2-enedioate. Activated by Mn2+. May be identical to EC 3.7.1.5, acylpyruvate hydrolase.
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3-maleylpyruvate + H2O
maleate + pyruvate
6-bromomaleylpyruvate + H2O
2-bromomaleate + pyruvate
6-chloromaleylpyruvate + H2O
2-chloromaleate + pyruvate
6-ethylmaleylpyruvate + H2O
2-ethylmaleate + pyruvate
6-fluoromaleylpyruvate + H2O
2-fluoromaleate + pyruvate
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100% activity compared to 3-maleylpyruvate
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-
?
6-methylmaleylpyruvate + H2O
2-methylmaleate + pyruvate
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110% activity compared to 3-maleylpyruvate
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-
?
6-propylmaleylpyruvate + H2O
2-propylmaleate + pyruvate
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10% activity compared to 3-maleylpyruvate
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?
additional information
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3-maleylpyruvate + H2O
maleate + pyruvate
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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-
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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100% activity
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?
3-maleylpyruvate + H2O
maleate + pyruvate
the enzyme is involved in maleylpyruvate catabolism
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-
?
3-maleylpyruvate + H2O
maleate + pyruvate
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100% activity
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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?
3-maleylpyruvate + H2O
maleate + pyruvate
the enzyme is involved in maleylpyruvate catabolism
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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?
6-bromomaleylpyruvate + H2O
2-bromomaleate + pyruvate
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130% activity compared to 3-maleylpyruvate
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?
6-bromomaleylpyruvate + H2O
2-bromomaleate + pyruvate
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130% activity compared to 3-maleylpyruvate
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?
6-chloromaleylpyruvate + H2O
2-chloromaleate + pyruvate
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130% activity compared to 3-maleylpyruvate
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?
6-chloromaleylpyruvate + H2O
2-chloromaleate + pyruvate
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130% activity compared to 3-maleylpyruvate
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?
6-ethylmaleylpyruvate + H2O
2-ethylmaleate + pyruvate
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60% activity compared to 3-maleylpyruvate
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?
6-ethylmaleylpyruvate + H2O
2-ethylmaleate + pyruvate
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60% activity compared to 3-maleylpyruvate
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additional information
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no activity against either fumarylpyruvate, maleylacetoacetate, or fumarylacetoacetate
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additional information
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no activity against either fumarylpyruvate, maleylacetoacetate, or fumarylacetoacetate
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3-maleylpyruvate + H2O
maleate + pyruvate
3-maleylpyruvate + H2O
maleate + pyruvate
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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100% activity
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?
3-maleylpyruvate + H2O
maleate + pyruvate
the enzyme is involved in maleylpyruvate catabolism
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-
?
3-maleylpyruvate + H2O
maleate + pyruvate
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100% activity
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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-
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?
3-maleylpyruvate + H2O
maleate + pyruvate
the enzyme is involved in maleylpyruvate catabolism
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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?
3-maleylpyruvate + H2O
maleate + pyruvate
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?
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Mn2+
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activates
Mn2+
addition of Mn2+ at 0.05 or 0.1 mM enhances the enzyme activity by 30%
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Cd2+
complete inhibition at 1 mM
Co2+
complete inhibition at 1 mM
Cu2+
complete inhibition at 1 mM
Ni2+
complete inhibition at 1 mM
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0.014 - 0.1662
3-maleylpyruvate
0.014
3-maleylpyruvate
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pH and temperature not specified in the publication
0.0199
3-maleylpyruvate
at pH 7.6 and 30°C
0.1662
3-maleylpyruvate
pH 7.2, 23°C
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0.063
3-maleylpyruvate
pH 7.2, 23°C
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0.17
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crude extract, pH and temperature not specified in the publication
8.8
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after 52fold purification, pH and temperature not specified in the publication
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UniProt
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UniProt
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UniProt
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UniProt
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malfunction
hbzF-disrupted mutant could still grow on gentisate
malfunction
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hbzF-disrupted mutant could still grow on gentisate
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metabolism
the enzyme is involved in maleylpyruvate catabolism
metabolism
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the enzyme is involved in maleylpyruvate catabolism
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HBZF_PSEAC
287
0
31208
Swiss-Prot
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G2IPX5_SPHSK
Sphingobium sp. (strain NBRC 103272 / SYK-6)
296
0
32245
TrEMBL
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33000
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2 * 33000, SDS-PAGE
33000
2 * 33000, SDS-PAGE
77000
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gel filtration
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homodimer
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2 * 33000, SDS-PAGE
homodimer
2 * 33000, SDS-PAGE
homodimer
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2 * 33000, SDS-PAGE
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homodimer
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2 * 33000, SDS-PAGE
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sitting-drop vapor-diffusion technique at 20°C. Crystal structures of both the apo and pyruvate-manganese ion-bound enzymes
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-80°C, with 50% (v/v) glycerol, 20 days, 38% loss of activity
-80°C, with 50% (v/v) glycerol, 50 days, 73% loss of activity
4°C, with 5% (v/v) glycerol, 10 days, 50% loss of activity
4°C, with 5% (v/v) glycerol, 40 days, 79% loss of activity
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ammonium sulfate precipitation, DEAE-cellulose column chromatography, Sephadex G-150 gel filtration, DEAE-Sephadex A50 gel filtration, and triethylanilnoethyl-cellulose column chromatography
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Ni Sepharose column chromatography
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expressed in Escherichia coli BL21(DE3) cells
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neither 3-hydroxybenzoate nor gentisate can induce the synthesis of maleylpyruvate hydrolase II
neither 3-hydroxybenzoate nor gentisate can induce the synthesis of maleylpyruvate hydrolase II
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neither 3-hydroxybenzoate nor gentisate can induce the synthesis of maleylpyruvate hydrolase II
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Liu, K.; Liu, T.T.; Zhou, N.Y.
HbzF catalyzes direct hydrolysis of maleylpyruvate in the gentisate pathway of Pseudomonas alcaligenes NCIMB 9867
Appl. Environ. Microbiol.
79
1044-1047
2013
Pseudomonas alcaligenes (Q0QFQ3), Pseudomonas alcaligenes NCIMB 9867 (Q0QFQ3), Pseudomonas alcaligenes NCIMB 9867
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Poh, C.L.; Bayly, R.C.
Regulation of isofunctional enzymes in Pseudomonas alcaligenes mutants defective in the gentisate pathway
J. Appl. Bacteriol.
64
451-458
1988
Pseudomonas alcaligenes, Pseudomonas alcaligenes P25X1
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Bayly, R.C.; Chapman, P.J.; Dagley, S.; Di Berardino, D.
Purification and some properties of maleylpyruvate hydrolase and fumarylpyruvate hydrolase from Pseudomonas alcaligenes
J. Bacteriol.
143
70-77
1980
Pseudomonas alcaligenes, Pseudomonas alcaligenes NCIB 9867
brenda
Liu, K.; Xu, Y.; Zhou, N.Y.
Identification of a specific maleate hydratase in the direct hydrolysis route of the gentisate pathway
Appl. Environ. Microbiol.
81
5753-5760
2015
Pseudomonas alcaligenes (Q0QFQ3), Pseudomonas alcaligenes, Pseudomonas alcaligenes NCIMB 9867 (Q0QFQ3), Pseudomonas alcaligenes NCIMB 9867
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Hong, H.; Seo, H.; Kim, K.
Structural insights into a maleylpyruvate hydrolase from Sphingobium sp. SYK-6, a bacterium degrading lignin-derived aryls
Biochem. Biophys. Res. Commun.
514
765-771
2019
Sphingobium sp. SYK-6 (G2IPX5)
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