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MHPB_ECO55
ID   MHPB_ECO55              Reviewed;         314 AA.
AC   B7L504;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   25-MAY-2022, entry version 66.
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};
GN   OrderedLocusNames=EC55989_0355;
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 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; CU928145; CAU96232.1; -; Genomic_DNA.
DR   RefSeq; WP_000543465.1; NC_011748.1.
DR   AlphaFoldDB; B7L504; -.
DR   SMR; B7L504; -.
DR   EnsemblBacteria; CAU96232; CAU96232; EC55989_0355.
DR   KEGG; eck:EC55989_0355; -.
DR   HOGENOM; CLU_078149_0_0_6; -.
DR   OMA; MDVDHGT; -.
DR   UniPathway; UPA00714; -.
DR   Proteomes; UP000000746; 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_1000187000"
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;  34274 MW;  9B59455BAFA10754 CRC64;
     MHAYLHCLSH SPLVGYVDPA QEVLDEVNGV IASARERIAA FSPELVVLFA PDHYNGFFYD
     VMPPFCLGVG ATAIGDFGSA AGELPVPVEL AEACAHAVMK SGIDLAVSYC MQVDHGFAQP
     LEFLLGGLYK VPVLPVFING VATPLPGFQR TRMLGEAIGR FTSTLNKRVL FLGSGGLSHQ
     PPVPELAKAD AHMRDRLLGS GKDLPASERE LRQQRVISAA EKFVEDQRTL HPLNPIWDNQ
     FMTLLEQGRI QELDAVSNEE LSAIAGKSTH EIKTWVAAFA AISTFGNWRS EGRYYRPIPE
     WIAGFGSLSA RTEN
 
 
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