MHPC_ECO24
ID MHPC_ECO24 Reviewed; 288 AA.
AC A7ZI96;
DT 10-JUN-2008, integrated into UniProtKB/Swiss-Prot.
DT 14-DEC-2011, sequence version 2.
DT 25-MAY-2022, entry version 79.
DE RecName: Full=2-hydroxy-6-oxononadienedioate/2-hydroxy-6-oxononatrienedioate hydrolase {ECO:0000255|HAMAP-Rule:MF_01654};
DE EC=3.7.1.14 {ECO:0000255|HAMAP-Rule:MF_01654};
DE AltName: Full=2-hydroxy-6-ketonona-2,4-diene-1,9-dioic acid 5,6-hydrolase {ECO:0000255|HAMAP-Rule:MF_01654};
DE AltName: Full=2-hydroxy-6-oxonona-2,4,7-triene-1,9-dioic acid 5,6-hydrolase {ECO:0000255|HAMAP-Rule:MF_01654};
DE AltName: Full=2-hydroxy-6-oxonona-2,4-diene-1,9-dioic acid 5,6-hydrolase {ECO:0000255|HAMAP-Rule:MF_01654};
GN Name=mhpC {ECO:0000255|HAMAP-Rule:MF_01654};
GN OrderedLocusNames=EcE24377A_0373;
OS Escherichia coli O139:H28 (strain E24377A / ETEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=331111;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=E24377A / ETEC;
RX PubMed=18676672; DOI=10.1128/jb.00619-08;
RA Rasko D.A., Rosovitz M.J., Myers G.S.A., Mongodin E.F., Fricke W.F.,
RA Gajer P., Crabtree J., Sebaihia M., Thomson N.R., Chaudhuri R.,
RA Henderson I.R., Sperandio V., Ravel J.;
RT "The pangenome structure of Escherichia coli: comparative genomic analysis
RT of E. coli commensal and pathogenic isolates.";
RL J. Bacteriol. 190:6881-6893(2008).
CC -!- FUNCTION: Catalyzes the cleavage of the C5-C6 bond of 2-hydroxy-6-
CC oxononadienedioate and 2-hydroxy-6-oxononatrienedioate, a dienol ring
CC fission product of the bacterial meta-cleavage pathway for degradation
CC of phenylpropionic acid. {ECO:0000255|HAMAP-Rule:MF_01654}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2Z,4E)-2-hydroxy-6-oxonona-2,4-dienedioate + H2O = (2Z)-2-
CC hydroxypenta-2,4-dienoate + H(+) + succinate; Xref=Rhea:RHEA:34187,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30031,
CC ChEBI:CHEBI:66887, ChEBI:CHEBI:67152; EC=3.7.1.14;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01654};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2Z,4E,7E)-2-hydroxy-6-oxonona-2,4,7-trienedioate + H2O =
CC (2Z)-2-hydroxypenta-2,4-dienoate + fumarate + H(+);
CC Xref=Rhea:RHEA:34191, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:29806, ChEBI:CHEBI:66888, ChEBI:CHEBI:67152; EC=3.7.1.14;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01654};
CC -!- PATHWAY: Aromatic compound metabolism; 3-phenylpropanoate degradation.
CC {ECO:0000255|HAMAP-Rule:MF_01654}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01654}.
CC -!- SIMILARITY: Belongs to the AB hydrolase superfamily. MhpC family.
CC {ECO:0000255|HAMAP-Rule:MF_01654}.
CC -!- SEQUENCE CAUTION:
CC Sequence=ABV17339.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR EMBL; CP000800; ABV17339.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_000121898.1; NC_009801.1.
DR AlphaFoldDB; A7ZI96; -.
DR SMR; A7ZI96; -.
DR ESTHER; ecoli-mhpc; Carbon-carbon_bond_hydrolase.
DR MEROPS; S33.995; -.
DR EnsemblBacteria; ABV17339; ABV17339; EcE24377A_0373.
DR GeneID; 66671347; -.
DR KEGG; ecw:EcE24377A_0373; -.
DR HOGENOM; CLU_020336_13_2_6; -.
DR UniPathway; UPA00714; -.
DR Proteomes; UP000001122; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:InterPro.
DR GO; GO:0052823; F:2-hydroxy-6-oxonona-2,4,7-trienedioate hydrolase activity; IEA:UniProtKB-EC.
DR GO; GO:0018771; F:2-hydroxy-6-oxonona-2,4-dienedioate hydrolase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0042803; F:protein homodimerization activity; IEA:InterPro.
DR GO; GO:0019380; P:3-phenylpropionate catabolic process; IEA:UniProtKB-UniPathway.
DR Gene3D; 3.40.50.1820; -; 1.
DR HAMAP; MF_01654; MhpC; 1.
DR InterPro; IPR029058; AB_hydrolase.
DR InterPro; IPR000073; AB_hydrolase_1.
DR InterPro; IPR000639; Epox_hydrolase-like.
DR InterPro; IPR023791; MhpC_alpha/beta_hydrolase.
DR Pfam; PF12697; Abhydrolase_6; 1.
DR PRINTS; PR00111; ABHYDROLASE.
DR PRINTS; PR00412; EPOXHYDRLASE.
DR SUPFAM; SSF53474; SSF53474; 1.
PE 3: Inferred from homology;
KW Aromatic hydrocarbons catabolism; Hydrolase.
FT CHAIN 1..288
FT /note="2-hydroxy-6-oxononadienedioate/2-hydroxy-6-
FT oxononatrienedioate hydrolase"
FT /id="PRO_0000337780"
FT DOMAIN 38..273
FT /note="AB hydrolase-1"
FT /evidence="ECO:0000255"
FT ACT_SITE 267
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01654"
FT SITE 114
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01654"
FT SITE 192
FT /note="Catalytic role in ketonization of the dienol
FT substrate (substrate destabilization)"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01654"
SQ SEQUENCE 288 AA; 31937 MW; C039CEE82DBA57CD CRC64;
MSYQPQTEAA TSRFLNVEEA GKTLRIHFND CGQGDETVVL LHGSGPGATG WANFSRNIDP
LVEAGYRVIL LDCPGWGKSD SIVNSGSRSD LNARILKSVV DQLDIAKIHL LGNSMGGHSS
VAFTLNWPER VGKLVLMGGG TGGMSLFTPM PTEGIKRLNQ LYRQPTIENL KLMMDIFVFD
TSDLTDALFE ARLNNMLSRR DHLENFVKSL EANPKQFPDF GPRLAEIKAQ TLIVWGRNDR
FVPMDAGLRL LSGIAGSELH IFRDCGHWAQ WEHADAFNQL VLNFLARP
