ID A0A126RFV4_9SPHN Unreviewed; 383 AA.
AC A0A126RFV4;
DT 11-MAY-2016, integrated into UniProtKB/TrEMBL.
DT 11-MAY-2016, sequence version 1.
DT 24-JAN-2024, entry version 39.
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=metX {ECO:0000313|EMBL:AMK21068.1};
GN Synonyms=metXA {ECO:0000256|HAMAP-Rule:MF_00296};
GN ORFNames=K426_00520 {ECO:0000313|EMBL:AMK21068.1};
OS Sphingobium sp. TKS.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingomonadaceae; Sphingobium.
OX NCBI_TaxID=1315974 {ECO:0000313|EMBL:AMK21068.1, ECO:0000313|Proteomes:UP000060779};
RN [1] {ECO:0000313|Proteomes:UP000060779}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TKS {ECO:0000313|Proteomes:UP000060779};
RA Tabata M.;
RT "Whole genome sequence of gamma-HCH degrading bacterium Sphingobium sp.
RT TKS.";
RL Submitted (APR-2013) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:AMK21068.1, ECO:0000313|Proteomes:UP000060779}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TKS {ECO:0000313|EMBL:AMK21068.1,
RC ECO:0000313|Proteomes:UP000060779};
RX PubMed=27056231;
RA Tabata M., Ohhata S., Kawasumi T., Nikawadori Y., Kishida K., Sato T.,
RA Ohtsubo Y., Tsuda M., Nagata Y.;
RT "Complete Genome Sequence of a gamma-Hexachlorocyclohexane Degrader,
RT Sphingobium sp. Strain TKS, Isolated from a gamma-Hexachlorocyclohexane-
RT Degrading Microbial Community.";
RL Genome Announc. 4:0-0(2016).
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; CP005083; AMK21068.1; -; Genomic_DNA.
DR RefSeq; WP_066552970.1; NZ_CP005083.1.
DR AlphaFoldDB; A0A126RFV4; -.
DR STRING; 1315974.K426_00520; -.
DR KEGG; spht:K426_00520; -.
DR PATRIC; fig|1315974.3.peg.107; -.
DR OrthoDB; 9800754at2; -.
DR UniPathway; UPA00051; UER00074.
DR Proteomes; UP000060779; Chromosome 1.
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; 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 ECO:0000313|EMBL:AMK21068.1};
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:UP000060779};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00296}.
FT DOMAIN 51..364
FT /note="AB hydrolase-1"
FT /evidence="ECO:0000259|Pfam:PF00561"
FT ACT_SITE 156
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296,
FT ECO:0000256|PIRSR:PIRSR000443-1"
FT ACT_SITE 327
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296,
FT ECO:0000256|PIRSR:PIRSR000443-1"
FT ACT_SITE 360
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296,
FT ECO:0000256|PIRSR:PIRSR000443-1"
FT BINDING 226
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296"
FT BINDING 361
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00296"
SQ SEQUENCE 383 AA; 41639 MW; 1D22CE7DB89FD8D0 CRC64;
MASASFSDDI RFGLRRQVRL TGPLQLDSGA FLGPVDIAYE TYGRMNADRS NAILICHALT
GDQYVASEHP VTGKPGWWWR LVGEGKPVDP ARHFMVCANV IGSCMGSSGP ASLDPATGGP
HAMRFPVITI ADMVRAQAML LDHLGVDRLH AVIGGSMGGM QALTWPTLYP ERVESCIVIA
STARHSAQNI AFHEVGRQAI MADPNWRGGD YYADGQIPSA GLAVARMAAH ITYLSEAGLT
EKFGRRLQGR PENPNGSKTF GFDADFQVES YLRHQGLSFV ERFDANSYLF ITRAMDYYDI
AEDHGGSLAK AFAASRARFC LVSFDTDWLY PTAESRLIVH ALNASGAQAS FVELSSPFGH
DAFLLECPEL NRVVDGFLKG GRA
//
