MHPC_ECO55
ID MHPC_ECO55 Reviewed; 288 AA.
AC B7L505;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 14-DEC-2011, sequence version 2.
DT 25-MAY-2022, entry version 67.
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=EC55989_0356;
OS Escherichia coli (strain 55989 / EAEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=585055;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=55989 / EAEC;
RX PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT "Organised genome dynamics in the Escherichia coli species results in
RT highly diverse adaptive paths.";
RL PLoS Genet. 5:E1000344-E1000344(2009).
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=CAU96233.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR EMBL; CU928145; CAU96233.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_000121898.1; NC_011748.1.
DR AlphaFoldDB; B7L505; -.
DR SMR; B7L505; -.
DR ESTHER; ecoli-mhpc; Carbon-carbon_bond_hydrolase.
DR MEROPS; S33.995; -.
DR EnsemblBacteria; CAU96233; CAU96233; EC55989_0356.
DR GeneID; 66671347; -.
DR KEGG; eck:EC55989_0356; -.
DR HOGENOM; CLU_020336_13_2_6; -.
DR UniPathway; UPA00714; -.
DR Proteomes; UP000000746; 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_1000187012"
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
