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MHPB_BURVG
ID   MHPB_BURVG              Reviewed;         317 AA.
AC   A4JPY0;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 90.
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=Bcep1808_5387;
OS   Burkholderia vietnamiensis (strain G4 / LMG 22486) (Burkholderia cepacia
OS   (strain R1808)).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Burkholderia; Burkholderia cepacia complex.
OX   NCBI_TaxID=269482;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=G4 / LMG 22486;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Tiedje J., Richardson P.;
RT   "Complete sequence of chromosome 2 of Burkholderia vietnamiensis G4.";
RL   Submitted (MAR-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000615; ABO58333.1; -; Genomic_DNA.
DR   AlphaFoldDB; A4JPY0; -.
DR   SMR; A4JPY0; -.
DR   STRING; 269482.Bcep1808_5387; -.
DR   EnsemblBacteria; ABO58333; ABO58333; Bcep1808_5387.
DR   KEGG; bvi:Bcep1808_5387; -.
DR   eggNOG; COG3384; Bacteria.
DR   HOGENOM; CLU_078149_0_0_4; -.
DR   OMA; MDVDHGT; -.
DR   UniPathway; UPA00714; -.
DR   Proteomes; UP000002287; Chromosome 2.
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;
KW   Reference proteome.
FT   CHAIN           1..317
FT                   /note="2,3-dihydroxyphenylpropionate/2,3-dihydroxicinnamic
FT                   acid 1,2-dioxygenase"
FT                   /id="PRO_0000337645"
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   317 AA;  33930 MW;  1185362AAF25641E CRC64;
     MPIHLECMSH TPLHGYFDPA PAVVAEVERV QRAARERVDA FDPELVIVFA PDHYNGFFYD
     VMPQFCIGAS ATAVGDFGSA AGPLPVARDA ALALADAALA SDIDVAVSYR MQVDHGCAQA
     LEVLTGRIDR FPVVPVFINS VAPPMASCRR ARLLGDAIGR VVARMNRRVL LIGSGGISHE
     PPVPEIAGAD DVVAERLIAG RNPSPASRDA RQSSTVAAAR AFAAGDSRLH PLNPAWDRRF
     LELLERGDLT AADGLTNEAI TRDAGKSAHE IRTWVAAFGA LAASGPYAAS IDYYRAIPEW
     IAGFGAMHAR ERTLSRR
 
 
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