ID   HGD_BURTA               Reviewed;         450 AA.
AC   Q2SYQ6;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Homogentisate 1,2-dioxygenase {ECO:0000255|HAMAP-Rule:MF_00334};
DE            Short=HGDO {ECO:0000255|HAMAP-Rule:MF_00334};
DE            EC=1.13.11.5 {ECO:0000255|HAMAP-Rule:MF_00334};
DE   AltName: Full=Homogentisate oxygenase {ECO:0000255|HAMAP-Rule:MF_00334};
DE   AltName: Full=Homogentisic acid oxidase {ECO:0000255|HAMAP-Rule:MF_00334};
DE   AltName: Full=Homogentisicase {ECO:0000255|HAMAP-Rule:MF_00334};
GN   Name=hmgA {ECO:0000255|HAMAP-Rule:MF_00334}; OrderedLocusNames=BTH_I1397;
OS   Burkholderia thailandensis (strain ATCC 700388 / DSM 13276 / CIP 106301 /
OS   E264).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Burkholderia; pseudomallei group.
OX   NCBI_TaxID=271848;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700388 / DSM 13276 / CIP 106301 / E264;
RX   PubMed=16336651; DOI=10.1186/1471-2164-6-174;
RA   Kim H.S., Schell M.A., Yu Y., Ulrich R.L., Sarria S.H., Nierman W.C.,
RA   DeShazer D.;
RT   "Bacterial genome adaptation to niches: divergence of the potential
RT   virulence genes in three Burkholderia species of different survival
RT   strategies.";
RL   BMC Genomics 6:174-174(2005).
CC   -!- FUNCTION: Involved in the catabolism of homogentisate (2,5-
CC       dihydroxyphenylacetate or 2,5-OH-PhAc), a central intermediate in the
CC       degradation of phenylalanine and tyrosine. Catalyzes the oxidative ring
CC       cleavage of the aromatic ring of homogentisate to yield
CC       maleylacetoacetate. {ECO:0000255|HAMAP-Rule:MF_00334}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=homogentisate + O2 = 4-maleylacetoacetate + H(+);
CC         Xref=Rhea:RHEA:15449, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379,
CC         ChEBI:CHEBI:16169, ChEBI:CHEBI:17105; EC=1.13.11.5;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00334};
CC   -!- COFACTOR:
CC       Name=Fe cation; Xref=ChEBI:CHEBI:24875;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00334};
CC   -!- PATHWAY: Amino-acid degradation; L-phenylalanine degradation;
CC       acetoacetate and fumarate from L-phenylalanine: step 4/6.
CC       {ECO:0000255|HAMAP-Rule:MF_00334}.
CC   -!- SUBUNIT: Hexamer; dimer of trimers. {ECO:0000255|HAMAP-Rule:MF_00334}.
CC   -!- SIMILARITY: Belongs to the homogentisate dioxygenase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00334}.
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DR   EMBL; CP000086; ABC36904.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q2SYQ6; -.
DR   SMR; Q2SYQ6; -.
DR   PRIDE; Q2SYQ6; -.
DR   EnsemblBacteria; ABC36904; ABC36904; BTH_I1397.
DR   KEGG; bte:BTH_I1397; -.
DR   HOGENOM; CLU_027174_0_0_4; -.
DR   OMA; FMFETRW; -.
DR   UniPathway; UPA00139; UER00339.
DR   Proteomes; UP000001930; Chromosome I.
DR   GO; GO:0004411; F:homogentisate 1,2-dioxygenase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006559; P:L-phenylalanine catabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0006572; P:tyrosine catabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 2.60.120.10; -; 1.
DR   HAMAP; MF_00334; Homogentis_dioxygen; 1.
DR   InterPro; IPR005708; Homogentis_dOase.
DR   InterPro; IPR022950; Homogentis_dOase_bac.
DR   InterPro; IPR014710; RmlC-like_jellyroll.
DR   InterPro; IPR011051; RmlC_Cupin_sf.
DR   PANTHER; PTHR11056; PTHR11056; 1.
DR   Pfam; PF04209; HgmA; 1.
DR   SUPFAM; SSF51182; SSF51182; 1.
DR   TIGRFAMs; TIGR01015; hmgA; 1.
PE   3: Inferred from homology;
KW   Dioxygenase; Iron; Metal-binding; Oxidoreductase; Phenylalanine catabolism;
KW   Tyrosine catabolism.
FT   CHAIN           1..450
FT                   /note="Homogentisate 1,2-dioxygenase"
FT                   /id="PRO_1000019528"
FT   ACT_SITE        304
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
FT   BINDING         347
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
FT   BINDING         353
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
FT   BINDING         362
FT                   /ligand="homogentisate"
FT                   /ligand_id="ChEBI:CHEBI:16169"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
FT   BINDING         383
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
FT   BINDING         383
FT                   /ligand="homogentisate"
FT                   /ligand_id="ChEBI:CHEBI:16169"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
SQ   SEQUENCE   450 AA;  50013 MW;  32406319EE771859 CRC64;
     MERTTIMTLD FSKPGEAGYQ SGFANEFATE ALPGALPHAR NSPQRAPYGL YAEQLSGTAF
     TAPRGHNRRS WLYRIRPAAV HRPFELVSGE RRIVADFGDS GDVPPTPPNQ LRWDPLPMPA
     QPTDFVDGWV TMAGNGSAAA MSGCAIHLYA ANRSMRERFF YSADGELLIV PQEGRLFIMT
     ELGRLDVEPF EIAVIPRGVR FAVALPDGRA RGYVCENFGA LLRLPDLGPI GSNGLANPRD
     FLTPNASYED REGAFELVAK LNGRLWRADI DHSPFDVVAW HGNYAPYKYD LRHFNTIGSI
     SYDHPDPSIF LVLQSQSDTP GVDAIDFVIF PPRWLAAEDT FRPPWFHRNV ASEFMGLVHG
     VYDAKAEGFV PGGASLHNCM SGHGPDADTF EKASAIDTSR PNKVGDTMAF MFETRTLIRP
     TRFALDTAQL QANYFECWQG LKKHFNPEQR