ID   HGD_BURO1               Reviewed;         444 AA.
AC   Q1BYQ6;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   11-JUL-2006, sequence version 1.
DT   27-MAR-2024, entry version 87.
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};
GN   OrderedLocusNames=Bcen_0337;
OS   Burkholderia orbicola (strain AU 1054).
OC   Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Burkholderia; Burkholderia cepacia complex;
OC   Burkholderia orbicola.
OX   NCBI_TaxID=331271;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AU 1054;
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., Lykidis A., LiPuma J.J., Konstantinidis K.,
RA   Tiedje J.M., Richardson P.;
RT   "Complete sequence of chromosome 1 of Burkholderia cenocepacia AU 1054.";
RL   Submitted (MAY-2006) to the EMBL/GenBank/DDBJ databases.
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; Evidence={ECO:0000255|HAMAP-
CC         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; CP000378; ABF75249.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q1BYQ6; -.
DR   SMR; Q1BYQ6; -.
DR   HOGENOM; CLU_027174_0_0_4; -.
DR   UniPathway; UPA00139; UER00339.
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   CDD; cd07000; cupin_HGO_N; 1.
DR   Gene3D; 2.60.120.10; Jelly Rolls; 1.
DR   HAMAP; MF_00334; Homogentis_dioxygen; 1.
DR   InterPro; IPR046451; HgmA_C.
DR   InterPro; IPR046452; HgmA_N.
DR   InterPro; IPR005708; Homogentis_dOase.
DR   InterPro; IPR022950; Homogentis_dOase_bac.
DR   InterPro; IPR014710; RmlC-like_jellyroll.
DR   InterPro; IPR011051; RmlC_Cupin_sf.
DR   NCBIfam; TIGR01015; hmgA; 1.
DR   PANTHER; PTHR11056; HOMOGENTISATE 1,2-DIOXYGENASE; 1.
DR   PANTHER; PTHR11056:SF0; HOMOGENTISATE 1,2-DIOXYGENASE; 1.
DR   Pfam; PF04209; HgmA_C; 1.
DR   Pfam; PF20510; HgmA_N; 1.
DR   SUPFAM; SSF51182; RmlC-like cupins; 1.
PE   3: Inferred from homology;
KW   Dioxygenase; Iron; Metal-binding; Oxidoreductase; Phenylalanine catabolism;
KW   Tyrosine catabolism.
FT   CHAIN           1..444
FT                   /note="Homogentisate 1,2-dioxygenase"
FT                   /id="PRO_1000019521"
FT   ACT_SITE        298
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
FT   BINDING         341
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
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         356
FT                   /ligand="homogentisate"
FT                   /ligand_id="ChEBI:CHEBI:16169"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
FT   BINDING         377
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
FT   BINDING         377
FT                   /ligand="homogentisate"
FT                   /ligand_id="ChEBI:CHEBI:16169"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00334"
SQ   SEQUENCE   444 AA;  48960 MW;  96D59FADCC2DED38 CRC64;
     MTLDLSKPAT AGYLSGFANE FATEALPGAL PHGRNSPQRA PYGLYAEQLS GTAFTAPRGH
     NRRSWLYRIR PAAVHRPFEP YAGAQRLVSE FGDSADVPPT PPNQLRWDPL PMPVEPTDFV
     DGLVTMAGNG SAAAMNGCAI HLYAANRSMQ DRFFYSADGE LLIVPQQGRL FIATEFGRLD
     VEPFEIAVIP RGVRFAVALP DGNARGYICE NFGALLRLPD LGPIGSNGLA NPRDFLTPQA
     AYEDREGAFE LIAKLNGRLW RADIGHSPLD VVAWHGNYAP YKYDLRLFNT IGSISFDHPD
     PSIFLVLQAQ SDTPGVDTID FVIFPPRWLA AEDTFRPPWF HRNVASEFMG LVHGAYDAKA
     EGFVPGGASL HNCMSGHGPD ADTFEKASAS DTTKPHKVDA TMAFMFETRT LIRPTRYALD
     TAQLQADYFE CWQGIKKHFN PEQR
//