ID   METXA_GEOUR             Reviewed;         370 AA.
AC   A5GC94;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Homoserine O-acetyltransferase {ECO:0000255|HAMAP-Rule:MF_00296};
DE            Short=HAT {ECO:0000255|HAMAP-Rule:MF_00296};
DE            EC=2.3.1.31 {ECO:0000255|HAMAP-Rule:MF_00296};
DE   AltName: Full=Homoserine transacetylase {ECO:0000255|HAMAP-Rule:MF_00296};
DE            Short=HTA {ECO:0000255|HAMAP-Rule:MF_00296};
GN   Name=metXA {ECO:0000255|HAMAP-Rule:MF_00296}; OrderedLocusNames=Gura_0583;
OS   Geotalea uraniireducens (strain Rf4) (Geobacter uraniireducens).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales;
OC   Geobacteraceae; Geotalea.
OX   NCBI_TaxID=351605;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1134 / JCM 13001 / Rf4;
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   Chertkov O., Brettin T., Bruce D., Han C., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Mikhailova N., Shelobolina E., Aklujkar M.,
RA   Lovley D., Richardson P.;
RT   "Complete sequence of Geobacter uraniireducens Rf4.";
RL   Submitted (MAY-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Transfers an acetyl group from acetyl-CoA to L-homoserine,
CC       forming acetyl-L-homoserine. {ECO:0000255|HAMAP-Rule:MF_00296}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=acetyl-CoA + L-homoserine = CoA + O-acetyl-L-homoserine;
CC         Xref=Rhea:RHEA:13701, ChEBI:CHEBI:57287, ChEBI:CHEBI:57288,
CC         ChEBI:CHEBI:57476, ChEBI:CHEBI:57716; EC=2.3.1.31;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00296};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC       pathway; O-acetyl-L-homoserine from L-homoserine: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_00296}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00296}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00296}.
CC   -!- SIMILARITY: Belongs to the AB hydrolase superfamily. MetX family.
CC       {ECO:0000255|HAMAP-Rule:MF_00296}.
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DR   EMBL; CP000698; ABQ24795.1; -; Genomic_DNA.
DR   RefSeq; WP_011937520.1; NC_009483.1.
DR   AlphaFoldDB; A5GC94; -.
DR   SMR; A5GC94; -.
DR   STRING; 351605.Gura_0583; -.
DR   ESTHER; geour-metx; Homoserine_transacetylase.
DR   EnsemblBacteria; ABQ24795; ABQ24795; Gura_0583.
DR   KEGG; gur:Gura_0583; -.
DR   HOGENOM; CLU_028760_1_2_7; -.
DR   OMA; TRFCVVS; -.
DR   OrthoDB; 536745at2; -.
DR   UniPathway; UPA00051; UER00074.
DR   Proteomes; UP000006695; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004414; F:homoserine O-acetyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009086; P:methionine biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.1820; -; 1.
DR   HAMAP; MF_00296; MetX_acyltransf; 1.
DR   InterPro; IPR029058; AB_hydrolase.
DR   InterPro; IPR000073; AB_hydrolase_1.
DR   InterPro; IPR008220; HAT_MetX-like.
DR   PANTHER; PTHR32268; PTHR32268; 1.
DR   Pfam; PF00561; Abhydrolase_1; 1.
DR   PIRSF; PIRSF000443; Homoser_Ac_trans; 1.
DR   SUPFAM; SSF53474; SSF53474; 1.
DR   TIGRFAMs; TIGR01392; homoserO_Ac_trn; 1.
PE   3: Inferred from homology;
KW   Acyltransferase; Amino-acid biosynthesis; Cytoplasm;
KW   Methionine biosynthesis; Reference proteome; Transferase.
FT   CHAIN           1..370
FT                   /note="Homoserine O-acetyltransferase"
FT                   /id="PRO_1000078942"
FT   DOMAIN          44..350
FT                   /note="AB hydrolase-1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        150
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        311
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        344
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   BINDING         217
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   BINDING         345
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
SQ   SEQUENCE   370 AA;  41342 MW;  C88F3D8DF6864D28 CRC64;
     MTVGIVEEKS VTFDTELRLE SGRILGPITL AYETYGELNA ARSNAILVAH AWTGNAHLAG
     RYSENEQKPG WWNEIVGPGK LLDTDRYFII CANVIGSCFG STGPASINPK TGKKYNLSFP
     VITVRDMVRA QQLLIDHLGI DRLFSVMGGS MGGMQALEWA TQFPERIASA IVLATTPRPS
     AQAISLNAVA RWAIFNDPTW KKGEYRKNPK DGLALARGIG HITFLSDESM TAKFGRRFSA
     RDGQFDFFGR FEVERYLSYN GYNFVDRFDA NSFLYLAKAL DLYDVAWGYE SLEEAFAQVA
     APIQFFAFSS DWLYPPAQTE EMVTTLEKLG KPVEYHLITS AYGHDAFLLE HETFTPMVRA
     FLEKVKTAAK