ID   METXA_DEIGD             Reviewed;         336 AA.
AC   Q1J115;
DT   07-JUN-2017, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2006, sequence version 1.
DT   03-AUG-2022, entry version 103.
DE   RecName: Full=Homoserine O-acetyltransferase {ECO:0000255|HAMAP-Rule:MF_00296};
DE            Short=HAT {ECO:0000255|HAMAP-Rule:MF_00296, ECO:0000303|PubMed:28581482};
DE            EC=2.3.1.31 {ECO:0000255|HAMAP-Rule:MF_00296, ECO:0000269|PubMed:28581482};
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, ECO:0000303|PubMed:28581482};
GN   OrderedLocusNames=Dgeo_0517 {ECO:0000312|EMBL:ABF44819.1};
OS   Deinococcus geothermalis (strain DSM 11300 / AG-3a).
OC   Bacteria; Deinococcus-Thermus; Deinococci; Deinococcales; Deinococcaceae;
OC   Deinococcus.
OX   NCBI_TaxID=319795;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 11300 / AG-3a;
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   Brettin T., Bruce D., Han C., Tapia R., Saunders E., Gilna P., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Daly M.J.,
RA   Fredrickson J.K., Makarova K.S., Gaidamakova E.K., Zhai M., Richardson P.;
RT   "Complete sequence of chromosome 1 of Deinococcus geothermalis DSM 11300.";
RL   Submitted (APR-2006) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   FUNCTION, AND CATALYTIC ACTIVITY.
RX   PubMed=28581482; DOI=10.1038/nchembio.2397;
RA   Bastard K., Perret A., Mariage A., Bessonnet T., Pinet-Turpault A.,
RA   Petit J.L., Darii E., Bazire P., Vergne-Vaxelaire C., Brewee C., Debard A.,
RA   Pellouin V., Besnard-Gonnet M., Artiguenave F., Medigue C., Vallenet D.,
RA   Danchin A., Zaparucha A., Weissenbach J., Salanoubat M., de Berardinis V.;
RT   "Parallel evolution of non-homologous isofunctional enzymes in methionine
RT   biosynthesis.";
RL   Nat. Chem. Biol. 13:858-866(2017).
CC   -!- FUNCTION: Transfers an acetyl group from acetyl-CoA to L-homoserine,
CC       forming acetyl-L-homoserine. {ECO:0000255|HAMAP-Rule:MF_00296,
CC       ECO:0000269|PubMed:28581482}.
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         ECO:0000269|PubMed:28581482};
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; CP000359; ABF44819.1; -; Genomic_DNA.
DR   RefSeq; WP_011529661.1; NC_008025.1.
DR   AlphaFoldDB; Q1J115; -.
DR   SMR; Q1J115; -.
DR   STRING; 319795.Dgeo_0517; -.
DR   ESTHER; deigd-q1j115; Homoserine_transacetylase.
DR   EnsemblBacteria; ABF44819; ABF44819; Dgeo_0517.
DR   KEGG; dge:Dgeo_0517; -.
DR   eggNOG; COG2021; Bacteria.
DR   HOGENOM; CLU_028760_1_2_0; -.
DR   OMA; TRFCVVS; -.
DR   OrthoDB; 536745at2; -.
DR   UniPathway; UPA00051; UER00074.
DR   Proteomes; UP000002431; 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.
PE   1: Evidence at protein level;
KW   Acyltransferase; Amino-acid biosynthesis; Cytoplasm;
KW   Methionine biosynthesis; Reference proteome; Transferase.
FT   CHAIN           1..336
FT                   /note="Homoserine O-acetyltransferase"
FT                   /id="PRO_0000440279"
FT   DOMAIN          58..321
FT                   /note="AB hydrolase-1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        147
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        286
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        315
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   BINDING         204
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   BINDING         316
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
SQ   SEQUENCE   336 AA;  36245 MW;  062A3614FF2FA9F9 CRC64;
     MTALISQPDL LPPPAPERCP PQQTARLFRE TPLLLDCGQV VQDVRVAYHT YGTPSDHAIL
     VLHALTGTSA VHEWWPDFLG EGKPLDPTRD YIVCANVLGG CAGSTGPAEL PRVNGEDPPL
     TLRDMARVGR ALLEELGVRR VSVIGASMGG MLAYAWLLEC PDLVDRAVII GAPARHSPWA
     IGLNTAARNA IRAAPGGEGL KVARQIAMLS YRSPESFALT QSGWGTRRPG TPDITTYLEH
     QGEKLSTRFC ERSYLALTGA MDRFQPTDAE LRSIRVPVLV VGISSDVLYP PAEVRTYAGL
     LPRGQYLELQ SPHGHDAFLI DPQGLPEAAA AFLHGA