ID Q2W049_MAGSA Unreviewed; 393 AA.
AC Q2W049;
DT 10-JAN-2006, integrated into UniProtKB/TrEMBL.
DT 10-JAN-2006, sequence version 1.
DT 27-MAR-2024, entry version 116.
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};
GN OrderedLocusNames=amb3972 {ECO:0000313|EMBL:BAE52776.1};
OS Magnetospirillum magneticum (strain AMB-1 / ATCC 700264).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Magnetospirillaceae; Paramagnetospirillum.
OX NCBI_TaxID=342108 {ECO:0000313|EMBL:BAE52776.1, ECO:0000313|Proteomes:UP000007058};
RN [1] {ECO:0000313|EMBL:BAE52776.1, ECO:0000313|Proteomes:UP000007058}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AMB-1 / ATCC 700264 {ECO:0000313|Proteomes:UP000007058};
RX PubMed=16303747; DOI=10.1093/dnares/dsi002;
RA Matsunaga T., Okamura Y., Fukuda Y., Wahyudi A.T., Murase Y., Takeyama H.;
RT "Complete genome sequence of the facultative anaerobic magnetotactic
RT bacterium Magnetospirillum sp. strain AMB-1.";
RL DNA Res. 12:157-166(2005).
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; AP007255; BAE52776.1; -; Genomic_DNA.
DR RefSeq; WP_011386326.1; NC_007626.1.
DR AlphaFoldDB; Q2W049; -.
DR STRING; 342108.amb3972; -.
DR ESTHER; magsa-q2w049; Homoserine_transacetylase.
DR KEGG; mag:amb3972; -.
DR HOGENOM; CLU_028760_1_2_5; -.
DR OrthoDB; 9800754at2; -.
DR UniPathway; UPA00051; UER00074.
DR Proteomes; UP000007058; 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; 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 Reference proteome {ECO:0000313|Proteomes:UP000007058};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00296}.
FT DOMAIN 54..363
FT /note="AB hydrolase-1"
FT /evidence="ECO:0000259|Pfam:PF00561"
FT ACT_SITE 159
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 229
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 393 AA; 43049 MW; A345189C9AE34791 CRC64;
MTQSEPVPTA SANPAGLKVE LGRDRPIRLD CGVELGPIQV AYQTYGRLNA DKSNAILICH
ALTGDHYVAD PHPITAKPGW WHELVGPGRV FDTDRYFLIC SNVLGGCMGT TGPVDENPAT
GQAWGLDFPV ITIGDMVKVQ ARLVDHLGID QLFCVVGGSM GGMQVLKWAQ VYPERVFSAI
PIASAARHSA QNIAFHEVGR QAIMADPDWC EGNYLQEGKR PHRGLAVARM AAHITYLSEP
ALHQKFGRNL QNRDTVTYGF DADFQVESYL RHQGNTFVDR FDANSYLYIT RAMDYFDLAA
ESGGVLANAF RGTRTRFCVV SFTSDWLFPT PESRAVVHAL NAVAANVSFV EIKSDKGHDA
FLLDEPEFHA TLTGFLEGAA THRGLPRTEG AGR
//
