ID E7C5I9_9BACT Unreviewed; 380 AA.
AC E7C5I9;
DT 08-MAR-2011, integrated into UniProtKB/TrEMBL.
DT 08-MAR-2011, sequence version 1.
DT 24-JAN-2024, entry version 46.
DE RecName: Full=Homoserine O-acetyltransferase {ECO:0000256|HAMAP-Rule:MF_00296};
DE Short=HAT {ECO:0000256|HAMAP-Rule:MF_00296};
DE EC=2.3.1.31 {ECO:0000256|HAMAP-Rule:MF_00296};
DE AltName: Full=Homoserine transacetylase {ECO:0000256|HAMAP-Rule:MF_00296};
DE Short=HTA {ECO:0000256|HAMAP-Rule:MF_00296};
GN Name=metXA {ECO:0000256|HAMAP-Rule:MF_00296};
OS uncultured verrucomicrobium HF0500_27H16.
OC Bacteria; Verrucomicrobiota; environmental samples.
OX NCBI_TaxID=723600 {ECO:0000313|EMBL:ADI22713.1};
RN [1] {ECO:0000313|EMBL:ADI22713.1}
RP NUCLEOTIDE SEQUENCE.
RA Pham V.D., Delong E.F.;
RT "Genome fragments of uncultured bacteria from the North Pacific subtropical
RT Gyre.";
RL Submitted (JAN-2010) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Transfers an acetyl group from acetyl-CoA to L-homoserine,
CC forming acetyl-L-homoserine. {ECO:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_00296}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00296}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00296}.
CC -!- SIMILARITY: Belongs to the AB hydrolase superfamily. MetX family.
CC {ECO:0000256|HAMAP-Rule:MF_00296}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00296}.
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DR EMBL; GU567995; ADI22713.1; -; Genomic_DNA.
DR AlphaFoldDB; E7C5I9; -.
DR UniPathway; UPA00051; UER00074.
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; 1.10.1740.110; -; 1.
DR Gene3D; 3.40.50.1820; alpha/beta hydrolase; 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 NCBIfam; TIGR01392; homoserO_Ac_trn; 1.
DR PANTHER; PTHR32268; HOMOSERINE O-ACETYLTRANSFERASE; 1.
DR PANTHER; PTHR32268:SF11; HOMOSERINE O-ACETYLTRANSFERASE; 1.
DR Pfam; PF00561; Abhydrolase_1; 1.
DR PIRSF; PIRSF000443; Homoser_Ac_trans; 1.
DR SUPFAM; SSF53474; alpha/beta-Hydrolases; 1.
PE 3: Inferred from homology;
KW Acyltransferase {ECO:0000256|HAMAP-Rule:MF_00296};
KW Amino-acid biosynthesis {ECO:0000256|HAMAP-Rule:MF_00296};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00296};
KW Methionine biosynthesis {ECO:0000256|HAMAP-Rule:MF_00296};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00296}.
FT DOMAIN 59..362
FT /note="AB hydrolase-1"
FT /evidence="ECO:0000259|Pfam:PF00561"
FT ACT_SITE 163
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296,
FT ECO:0000256|PIRSR:PIRSR000443-1"
FT ACT_SITE 325
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296,
FT ECO:0000256|PIRSR:PIRSR000443-1"
FT ACT_SITE 358
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296,
FT ECO:0000256|PIRSR:PIRSR000443-1"
FT BINDING 232
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296"
FT BINDING 359
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296"
SQ SEQUENCE 380 AA; 42493 MW; FB83678EA580BC75 CRC64;
MPTEQIDASP WKAVDNVGLV QPRDYHHAQS FTFDNGQSIP ELKIRYETYG DLNTDHSNAI
LVCHALSGDH HCAGYHEGAR KPGWWDNMIG PGKPIDTGRF HVICPNCLGG CQGTTGPASI
NPESGKPYNQ DFPRITIGDM VRAQKLLLNH MGIQNLYAAV GGSMGGMQVM QWMIDYPEVA
KRVLILASTA RQSTQAIAFD EVGRSAIHQD PNWNGGDYDP ENGPDTGLAI ARMMAHITYL
SNRGLESKFG RSRRQEAEKL TEVEFEVESY LRHQGRSFVN RFDANTYLHF TKALDVFDLY
GEGDDLTQAF KNVQARILAI GFTSDWLYSP EENRDIIQAL LKLGKDASYA ELEAELGHDS
FLLESEEYFN LVRAFLAEAR
//
