ID   MHPB1_DECAR             Reviewed;         312 AA.
AC   Q47HM4;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   25-MAY-2022, entry version 88.
DE   RecName: Full=2,3-dihydroxyphenylpropionate/2,3-dihydroxicinnamic acid 1,2-dioxygenase 1 {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 1 {ECO:0000255|HAMAP-Rule:MF_01653};
GN   Name=mhpB1 {ECO:0000255|HAMAP-Rule:MF_01653}; OrderedLocusNames=Daro_0901;
OS   Dechloromonas aromatica (strain RCB).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Rhodocyclales; Azonexaceae;
OC   Dechloromonas.
OX   NCBI_TaxID=159087;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RCB;
RX   PubMed=19650930; DOI=10.1186/1471-2164-10-351;
RA   Salinero K.K., Keller K., Feil W.S., Feil H., Trong S., Di Bartolo G.,
RA   Lapidus A.;
RT   "Metabolic analysis of the soil microbe Dechloromonas aromatica str. RCB:
RT   indications of a surprisingly complex life-style and cryptic anaerobic
RT   pathways for aromatic degradation.";
RL   BMC Genomics 10:351-351(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; CP000089; AAZ45657.1; -; Genomic_DNA.
DR   RefSeq; WP_011286666.1; NC_007298.1.
DR   AlphaFoldDB; Q47HM4; -.
DR   SMR; Q47HM4; -.
DR   STRING; 159087.Daro_0901; -.
DR   EnsemblBacteria; AAZ45657; AAZ45657; Daro_0901.
DR   KEGG; dar:Daro_0901; -.
DR   eggNOG; COG3384; Bacteria.
DR   HOGENOM; CLU_078149_0_0_4; -.
DR   OMA; MDVDHGT; -.
DR   OrthoDB; 1728007at2; -.
DR   UniPathway; UPA00714; -.
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..312
FT                   /note="2,3-dihydroxyphenylpropionate/2,3-dihydroxicinnamic
FT                   acid 1,2-dioxygenase 1"
FT                   /id="PRO_0000337648"
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   312 AA;  34020 MW;  4E2C6EB37FEED805 CRC64;
     MTIQLKCLSH TPLRGINDPG AATVAEVDAV LAKAKAEVEA FDPELIVVFA PDHYNGLFYD
     LMPPFVIATA ADSVGDYQTM TGPLSVDKDL ALEMAKFILD SDIDIAISHR LQVDHGCTQT
     LEEMTGSLTR YPVIPIIINS VAPPFGPYRR VRKLGEAVGK FIAKLNKRVL ILGTGGLSHE
     PPVPLLSGAN EDIANFLIAG RNPTPEFRAA RQARTLATGM IFGKPECELT PLNPEWDQNF
     MDLLIRGQLD KVDAFDIEEI SKAAGRSTHE VRTWVAAFAA MAASGPYNAH QDYYRPINEW
     IAGYGVVSAS QK