MHPB_RHORH
ID MHPB_RHORH Reviewed; 316 AA.
AC Q762H5;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 05-JUL-2004, sequence version 1.
DT 25-MAY-2022, entry version 55.
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}; Synonyms=bphC3;
OS Rhodococcus rhodochrous.
OC Bacteria; Actinobacteria; Corynebacteriales; Nocardiaceae; Rhodococcus.
OX NCBI_TaxID=1829;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=K37;
RX PubMed=15118304; DOI=10.1271/bbb.68.787;
RA Taguchi K., Motoyama M., Kudo T.;
RT "Multiplicity of 2,3-dihydroxybiphenyl dioxygenase genes in the Gram-
RT positive polychlorinated biphenyl degrading bacterium Rhodococcus
RT rhodochrous K37.";
RL Biosci. Biotechnol. Biochem. 68:787-795(2004).
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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AB117721; BAD10895.1; -; Genomic_DNA.
DR AlphaFoldDB; Q762H5; -.
DR SMR; Q762H5; -.
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..316
FT /note="2,3-dihydroxyphenylpropionate/2,3-dihydroxicinnamic
FT acid 1,2-dioxygenase"
FT /id="PRO_0000337666"
FT ACT_SITE 115
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01653"
FT ACT_SITE 180
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01653"
SQ SEQUENCE 316 AA; 34533 MW; E3CD5EEABC8A294E CRC64;
MTQALLCMSH SPLLDHATPP AEVKSAVDDA FARARDFVEA FDPELVVNFG PDHFNGFFYD
LMPPFCIGYR AHGTGDYDSF AGDLDVPEDV AADLAQFVLD HGSDVAISRH MEVDHGAVQP
MEILHGGDAG ARPILPVFVN SIARPFVPMS RVRAFGHAVG DFFAGTDKRV LFLGSGGLSH
DPPVPQFATA TASQREFLTS GRNPPPEARP ARQARTIETA RRFAAGEAEI MDLNPEWDRA
FLDVCRSGRV EDFDRYTADE MDAAAGHSSH EVRTWVAAYS ALRACGEYDV TYEFYRPIKE
YIAGFAVTTA QLAGEA
