ID   MHPB_MYCUA              Reviewed;         313 AA.
AC   A0PL52;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 2.
DT   10-JUN-2026, entry version 92.
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=MUL_0347;
OS   Mycobacterium ulcerans (strain Agy99).
OC   Bacteria; Bacillati; Actinomycetota; Actinomycetes; Mycobacteriales;
OC   Mycobacteriaceae; Mycobacterium; Mycobacterium ulcerans group.
OX   NCBI_TaxID=362242;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Agy99;
RX   PubMed=17210928; DOI=10.1101/gr.5942807;
RA   Stinear T.P., Seemann T., Pidot S., Frigui W., Reysset G., Garnier T.,
RA   Meurice G., Simon D., Bouchier C., Ma L., Tichit M., Porter J.L., Ryan J.,
RA   Johnson P.D.R., Davies J.K., Jenkin G.A., Small P.L.C., Jones L.M.,
RA   Tekaia F., Laval F., Daffe M., Parkhill J., Cole S.T.;
RT   "Reductive evolution and niche adaptation inferred from the genome of
RT   Mycobacterium ulcerans, the causative agent of Buruli ulcer.";
RL   Genome Res. 17:192-200(2007).
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; Evidence={ECO:0000255|HAMAP-
CC         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   -!- SEQUENCE CAUTION:
CC       Sequence=ABL03071.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000325; ABL03071.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; A0PL52; -.
DR   SMR; A0PL52; -.
DR   KEGG; mul:MUL_0347; -.
DR   eggNOG; COG3384; Bacteria.
DR   HOGENOM; CLU_078149_0_0_11; -.
DR   UniPathway; UPA00714; -.
DR   Proteomes; UP000000765; 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-UniRule.
DR   Gene3D; 3.40.830.10; LigB-like; 1.
DR   HAMAP; MF_01653; MhpB; 1.
DR   InterPro; IPR023789; DHPP/DHXA_dioxygenase.
DR   InterPro; IPR004183; Xdiol_dOase_suB.
DR   NCBIfam; NF009910; PRK13370.1-4; 1.
DR   Pfam; PF02900; LigB; 1.
DR   SUPFAM; SSF53213; LigB-like; 1.
PE   3: Inferred from homology;
KW   Aromatic hydrocarbons catabolism; Dioxygenase; Iron; Oxidoreductase;
KW   Reference proteome.
FT   CHAIN           1..313
FT                   /note="2,3-dihydroxyphenylpropionate/2,3-dihydroxicinnamic
FT                   acid 1,2-dioxygenase"
FT                   /id="PRO_0000337659"
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   313 AA;  33564 MW;  0EB633671CBFC800 CRC64;
     MALALCRMSH SPLLNLPGPR LDLLDEVHAA IAEAAEFVRA YDPDLVVIFS PDHYNGFFYR
     AMHPFCIGMY ASAVGDYGTH IGALDVPTDL AADCAKAVLG ADVDVAVSAS MDVDHGTVQP
     LEKLFGTATA RPVIPIFINA IAAPLGPLRR CRALGTAVGT FLSTLDLRVL VIGSGGLSHS
     PPVPTLHSAD PQVRERIVHG QPLTPAQRQA RQTVVMEAAK SFAAGNSDLQ PLNPAWDQRF
     LEIIDNGHLS DLDRWSNSFV THEGGSLAHE IRTWISAFAA MAVAGPYQTK VRYYKQAADL
     IAGFAIRTAV PIP
//