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METXA_RHORT
ID   METXA_RHORT             Reviewed;         391 AA.
AC   Q2RP84;
DT   04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   03-AUG-2022, entry version 92.
DE   RecName: Full=Homoserine O-acetyltransferase {ECO:0000255|HAMAP-Rule:MF_00296};
DE            Short=HAT {ECO:0000255|HAMAP-Rule:MF_00296};
DE            EC=2.3.1.31 {ECO:0000255|HAMAP-Rule:MF_00296};
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}; OrderedLocusNames=Rru_A3266;
OS   Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 /
OS   NCIMB 8255 / S1).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Rhodospirillum.
OX   NCBI_TaxID=269796;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIMB 8255 / S1;
RX   PubMed=21886856; DOI=10.4056/sigs.1804360;
RA   Munk A.C., Copeland A., Lucas S., Lapidus A., Del Rio T.G., Barry K.,
RA   Detter J.C., Hammon N., Israni S., Pitluck S., Brettin T., Bruce D.,
RA   Han C., Tapia R., Gilna P., Schmutz J., Larimer F., Land M., Kyrpides N.C.,
RA   Mavromatis K., Richardson P., Rohde M., Goeker M., Klenk H.P., Zhang Y.,
RA   Roberts G.P., Reslewic S., Schwartz D.C.;
RT   "Complete genome sequence of Rhodospirillum rubrum type strain (S1).";
RL   Stand. Genomic Sci. 4:293-302(2011).
CC   -!- FUNCTION: Transfers an acetyl group from acetyl-CoA to L-homoserine,
CC       forming acetyl-L-homoserine. {ECO:0000255|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:0000255|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: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; CP000230; ABC24061.1; -; Genomic_DNA.
DR   RefSeq; WP_011391014.1; NC_007643.1.
DR   RefSeq; YP_428348.1; NC_007643.1.
DR   AlphaFoldDB; Q2RP84; -.
DR   SMR; Q2RP84; -.
DR   STRING; 269796.Rru_A3266; -.
DR   ESTHER; rhort-metx; Homoserine_transacetylase.
DR   EnsemblBacteria; ABC24061; ABC24061; Rru_A3266.
DR   KEGG; rru:Rru_A3266; -.
DR   PATRIC; fig|269796.9.peg.3383; -.
DR   eggNOG; COG2021; Bacteria.
DR   HOGENOM; CLU_028760_1_2_5; -.
DR   OMA; TRFCVVS; -.
DR   OrthoDB; 536745at2; -.
DR   PhylomeDB; Q2RP84; -.
DR   UniPathway; UPA00051; UER00074.
DR   Proteomes; UP000001929; 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   3: Inferred from homology;
KW   Acyltransferase; Amino-acid biosynthesis; Cytoplasm;
KW   Methionine biosynthesis; Reference proteome; Transferase.
FT   CHAIN           1..391
FT                   /note="Homoserine O-acetyltransferase"
FT                   /id="PRO_0000231886"
FT   DOMAIN          50..360
FT                   /note="AB hydrolase-1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        155
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        321
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        354
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   BINDING         225
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   BINDING         355
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
SQ   SEQUENCE   391 AA;  42656 MW;  AF31C0C40E5BFE5C CRC64;
     MNVLPAASQP LNQSVTLCVD APMRLDSGLE LGPLTVAYQT IGRLNAERTN AILICHALTG
     DQHVIGPHPV TGRPGWWETL VGPGKTIDTD RYFIICSNVL GGCLGTTGPK EINPATGKPW
     GLGFPVITIG DMVRAQALLL DHLGIERLFC AIGGSMGAMQ VLQWAVSYPE RVRAVVPIAG
     SWRHSAQNIA FHEVGRQAIM ADPDWNGGDY LNQGTVPRRG LAVARMTAHI TYLSEPALQS
     KFGRKLQDRA SITYGFDADF QVESYLRHQG ANFVKRFDAN SYLYITRAMD YFDLAAEHDG
     VLARAFQGTK VRFCVVSFTS DWLFPTAESR AVVRAMNAAA ADVSFVEVTT DKGHDAFLLD
     EPEFHDTLQG FLDGAADMFG LPRGLFSGIR P
 
 
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