MHPB_ECOHS
ID MHPB_ECOHS Reviewed; 314 AA.
AC A7ZWZ5;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-OCT-2007, sequence version 1.
DT 25-MAY-2022, entry version 77.
DE RecName: Full=2,3-dihydroxyphenylpropionate/2,3-dihydroxicinnamic acid 1,2-dioxygenase {ECO:0000255|HAMAP-Rule:MF_01653};
DE EC=1.13.11.16 {ECO:0000255|HAMAP-Rule:MF_01653};
DE AltName: Full=3-carboxyethylcatechol 2,3-dioxygenase {ECO:0000255|HAMAP-Rule:MF_01653};
GN Name=mhpB {ECO:0000255|HAMAP-Rule:MF_01653}; OrderedLocusNames=EcHS_A0412;
OS Escherichia coli O9:H4 (strain HS).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=331112;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HS;
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 non-heme iron(II)-dependent oxidative cleavage
CC of 2,3-dihydroxyphenylpropionic acid and 2,3-dihydroxicinnamic acid
CC into 2-hydroxy-6-ketononadienedioate and 2-hydroxy-6-
CC ketononatrienedioate, respectively. {ECO:0000255|HAMAP-Rule:MF_01653}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=3-(2,3-dihydroxyphenyl)propanoate + O2 = (2Z,4E)-2-hydroxy-6-
CC oxonona-2,4-dienedioate + H(+); Xref=Rhea:RHEA:23840,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:15379, ChEBI:CHEBI:46951,
CC ChEBI:CHEBI:66887; EC=1.13.11.16; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01653};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2E)-3-(2,3-dihydroxyphenyl)prop-2-enoate + O2 = (2Z,4E,7E)-2-
CC hydroxy-6-oxonona-2,4,7-trienedioate + H(+); Xref=Rhea:RHEA:25054,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:15379, ChEBI:CHEBI:58642,
CC ChEBI:CHEBI:66888; EC=1.13.11.16; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01653};
CC -!- COFACTOR:
CC Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01653};
CC -!- PATHWAY: Aromatic compound metabolism; 3-phenylpropanoate degradation.
CC {ECO:0000255|HAMAP-Rule:MF_01653}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_01653}.
CC -!- SIMILARITY: Belongs to the LigB/MhpB extradiol dioxygenase family.
CC {ECO:0000255|HAMAP-Rule:MF_01653}.
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DR EMBL; CP000802; ABV04799.1; -; Genomic_DNA.
DR RefSeq; WP_000543459.1; NC_009800.1.
DR AlphaFoldDB; A7ZWZ5; -.
DR SMR; A7ZWZ5; -.
DR GeneID; 66671348; -.
DR KEGG; ecx:EcHS_A0412; -.
DR HOGENOM; CLU_078149_0_0_6; -.
DR OMA; MDVDHGT; -.
DR UniPathway; UPA00714; -.
DR Proteomes; UP000001123; Chromosome.
DR GO; GO:0047070; F:3-carboxyethylcatechol 2,3-dioxygenase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008198; F:ferrous iron binding; IEA:InterPro.
DR GO; GO:0019380; P:3-phenylpropionate catabolic process; IEA:UniProtKB-UniPathway.
DR CDD; cd07365; MhpB_like; 1.
DR HAMAP; MF_01653; MhpB; 1.
DR InterPro; IPR023789; DHPP/DHXA_dioxygenase.
DR InterPro; IPR004183; Xdiol_dOase_suB.
DR Pfam; PF02900; LigB; 1.
PE 3: Inferred from homology;
KW Aromatic hydrocarbons catabolism; Dioxygenase; Iron; Oxidoreductase.
FT CHAIN 1..314
FT /note="2,3-dihydroxyphenylpropionate/2,3-dihydroxicinnamic
FT acid 1,2-dioxygenase"
FT /id="PRO_0000337651"
FT ACT_SITE 115
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01653"
FT ACT_SITE 179
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01653"
SQ SEQUENCE 314 AA; 34226 MW; 8AA5A8574E5DEA54 CRC64;
MHAYLHCLSH SPLVGYVDPA QEVLDEVNGV IASARERIAA FSPELVVLFA PDHYNGFFYD
VMPPFCLGVG ATAIGDFGSA AGELPVPVEL AEACAHAVMK SGIDLAVSYC MQVDHGFAQP
LEFLLGGLDK VPVLPVFING VATPLPGFQR TRMLGEAIGR FTSTLNKRVL FLGSGGLSHQ
PPVPELAKAD AHMRDRLLGS GKDLPASERE LRQQRVISAA EKFVEDQRTL HPLNPIWDNQ
FMTLLEQGRI QELDAVSNEE LSAIAGKSTH EIKTWVAAFA AISTFGNWRS EGRYYRPIPE
WIAGFGSLSA RTEN