METXA_TRIL1
ID METXA_TRIL1 Reviewed; 367 AA.
AC B3E278;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 22-JUL-2008, sequence version 1.
DT 03-AUG-2022, entry version 76.
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=Glov_3478;
OS Trichlorobacter lovleyi (strain ATCC BAA-1151 / DSM 17278 / SZ) (Geobacter
OS lovleyi).
OC Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales;
OC Geobacteraceae; Trichlorobacter.
OX NCBI_TaxID=398767;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1151 / DSM 17278 / SZ;
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Chertkov O., Meincke L., Brettin T.,
RA Detter J.C., Han C., Tapia R., Kuske C.R., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Mikhailova N., Sung Y., Fletcher K.E.,
RA Ritalahti K.M., Loeffler F.E., Richardson P.;
RT "Complete sequence of chromosome of Geobacter lovleyi SZ.";
RL Submitted (MAY-2008) 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. In vitro, can also use propionyl-CoA or
CC butiryl-CoA as acyl donor. {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; CP001089; ACD97181.1; -; Genomic_DNA.
DR RefSeq; WP_012471501.1; NC_010814.1.
DR AlphaFoldDB; B3E278; -.
DR SMR; B3E278; -.
DR STRING; 398767.Glov_3478; -.
DR ESTHER; geols-metx; Homoserine_transacetylase.
DR EnsemblBacteria; ACD97181; ACD97181; Glov_3478.
DR KEGG; glo:Glov_3478; -.
DR eggNOG; COG2021; Bacteria.
DR HOGENOM; CLU_028760_1_2_7; -.
DR OMA; TRFCVVS; -.
DR OrthoDB; 536745at2; -.
DR UniPathway; UPA00051; UER00074.
DR Proteomes; UP000002420; 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 1: Evidence at protein level;
KW Acyltransferase; Amino-acid biosynthesis; Cytoplasm;
KW Methionine biosynthesis; Reference proteome; Transferase.
FT CHAIN 1..367
FT /note="Homoserine O-acetyltransferase"
FT /id="PRO_1000115224"
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 367 AA; 41452 MW; 5159673EDBB6197C CRC64;
MSIGVVHEQT ITFEAGIRLE SGRILAPITL VYELYGTMNA DCSNVIMVEH AWTGDAHLAG
KRREDDPKPG WWDAIVGPGR LLDTDRYCVL CSNVIGSCYG STGPASINPR TGKRYNLSFP
VITVRDMVRA QELLLDHLGI RRLLCVMGGS MGGMQALEWA TQYPERVASV VALATTPRPS
PQAISLNAVA RWAIYNDPTW KKGEYKHNPK DGLALARGIG HITFLSDESM WQKFERRFSA
KDGLFDFFGQ FEVERYLNYN GYNFVDRFDA NCFLYLAKAL DLYDVAWGYE SMTDAFSRIT
APIQFFAFSS DWLYPPYQTE EMVTCLQGLG KEVEYHLIQS AYGHDAFLLE HETFTPMVRS
LLERVAP