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METXS_ACIBY
ID   METXS_ACIBY             Reviewed;         386 AA.
AC   B0V4S0;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=Homoserine O-succinyltransferase {ECO:0000255|HAMAP-Rule:MF_00296};
DE            Short=HST {ECO:0000255|HAMAP-Rule:MF_00296};
DE            EC=2.3.1.46 {ECO:0000255|HAMAP-Rule:MF_00296};
DE   AltName: Full=Homoserine transsuccinylase {ECO:0000255|HAMAP-Rule:MF_00296};
DE            Short=HTS {ECO:0000255|HAMAP-Rule:MF_00296};
GN   Name=metXS {ECO:0000255|HAMAP-Rule:MF_00296}; OrderedLocusNames=ABAYE3293;
OS   Acinetobacter baumannii (strain AYE).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Acinetobacter; Acinetobacter calcoaceticus/baumannii complex.
OX   NCBI_TaxID=509173;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AYE;
RX   PubMed=18350144; DOI=10.1371/journal.pone.0001805;
RA   Vallenet D., Nordmann P., Barbe V., Poirel L., Mangenot S., Bataille E.,
RA   Dossat C., Gas S., Kreimeyer A., Lenoble P., Oztas S., Poulain J.,
RA   Segurens B., Robert C., Abergel C., Claverie J.-M., Raoult D., Medigue C.,
RA   Weissenbach J., Cruveiller S.;
RT   "Comparative analysis of Acinetobacters: three genomes for three
RT   lifestyles.";
RL   PLoS ONE 3:E1805-E1805(2008).
CC   -!- FUNCTION: Transfers a succinyl group from succinyl-CoA to L-homoserine,
CC       forming succinyl-L-homoserine. {ECO:0000255|HAMAP-Rule:MF_00296}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-homoserine + succinyl-CoA = CoA + O-succinyl-L-homoserine;
CC         Xref=Rhea:RHEA:22008, ChEBI:CHEBI:57287, ChEBI:CHEBI:57292,
CC         ChEBI:CHEBI:57476, ChEBI:CHEBI:57661; EC=2.3.1.46;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00296};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via de novo
CC       pathway; O-succinyl-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; CU459141; CAM88093.1; -; Genomic_DNA.
DR   RefSeq; WP_000009638.1; NC_010410.1.
DR   AlphaFoldDB; B0V4S0; -.
DR   SMR; B0V4S0; -.
DR   ESTHER; acib3-metx; Homoserine_transacetylase.
DR   EnsemblBacteria; CAM88093; CAM88093; ABAYE3293.
DR   KEGG; aby:ABAYE3293; -.
DR   HOGENOM; CLU_028760_1_2_6; -.
DR   OMA; TRFCVVS; -.
DR   UniPathway; UPA00051; UER00075.
DR   Proteomes; UP000002446; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008899; F:homoserine O-succinyltransferase 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; Transferase.
FT   CHAIN           1..386
FT                   /note="Homoserine O-succinyltransferase"
FT                   /id="PRO_1000115208"
FT   DOMAIN          49..358
FT                   /note="AB hydrolase-1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        156
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         226
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"
FT   SITE            323
FT                   /note="Important for acyl-CoA specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
SQ   SEQUENCE   386 AA;  43322 MW;  62FA65C26A0BE683 CRC64;
     MSFPADSVGL VTPQKFQFEE PLHLECGRVL PRFELMVETY GTLNADKSNA ILICHALSGH
     HHAAGYHHED DKKAGWWDSC IGPGKAIDTN KFFVVALNNI GGCSGSTGPT SPNPENDNRP
     YGPDFPLVTV RDWVKTQAML SDRLGISVWY AVVGGSLGGM QALQWSVDYP DRLQKCVVIA
     SAPKLSAQNI AFNEVARQSI LSDPDFHHGR YLEKDSYPKR GLILARMVGH ITYLSEEAMK
     QKFGRDLKSG KFMYGFDVEF QVESYLRYQG EQFSRNFDAN TYLIMTKALD YFDPSREYGH
     SLTEAMSKTK CQFLIVSFTT DWRFAPSRSQ EIVDALITNQ KPVSYLDIDA EQGHDSFLFP
     IPLYVKTLRA FLGGEEHLKS TSLEAS
 
 
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