ID   SST_XANC5               Reviewed;         400 AA.
AC   Q3BSK1;
DT   04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 100.
DE   RecName: Full=Serine O-succinyltransferase {ECO:0000255|HAMAP-Rule:MF_00296};
DE            Short=SST {ECO:0000255|HAMAP-Rule:MF_00296};
DE            EC=2.3.1.- {ECO:0000255|HAMAP-Rule:MF_00296};
GN   Name=metX; OrderedLocusNames=XCV2531;
OS   Xanthomonas campestris pv. vesicatoria (strain 85-10).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=316273;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=85-10;
RX   PubMed=16237009; DOI=10.1128/jb.187.21.7254-7266.2005;
RA   Thieme F., Koebnik R., Bekel T., Berger C., Boch J., Buettner D.,
RA   Caldana C., Gaigalat L., Goesmann A., Kay S., Kirchner O., Lanz C.,
RA   Linke B., McHardy A.C., Meyer F., Mittenhuber G., Nies D.H.,
RA   Niesbach-Kloesgen U., Patschkowski T., Rueckert C., Rupp O., Schneiker S.,
RA   Schuster S.C., Vorhoelter F.J., Weber E., Puehler A., Bonas U., Bartels D.,
RA   Kaiser O.;
RT   "Insights into genome plasticity and pathogenicity of the plant pathogenic
RT   Bacterium Xanthomonas campestris pv. vesicatoria revealed by the complete
RT   genome sequence.";
RL   J. Bacteriol. 187:7254-7266(2005).
CC   -!- FUNCTION: Transfers a succinyl group from succinyl-CoA to L-serine,
CC       forming succinyl-L-serine. {ECO:0000255|HAMAP-Rule:MF_00296}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-serine + succinyl-CoA = CoA + O-succinyl-L-serine;
CC         Xref=Rhea:RHEA:52820, ChEBI:CHEBI:33384, ChEBI:CHEBI:57287,
CC         ChEBI:CHEBI:57292, ChEBI:CHEBI:136856; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00296};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-cysteine biosynthesis; L-cysteine
CC       from L-serine: step 1/2. {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; AM039952; CAJ24208.1; -; Genomic_DNA.
DR   RefSeq; WP_011347689.1; NZ_CP017190.1.
DR   AlphaFoldDB; Q3BSK1; -.
DR   SMR; Q3BSK1; -.
DR   STRING; 456327.BJD11_10250; -.
DR   ESTHER; xanax-METX; Homoserine_transacetylase.
DR   EnsemblBacteria; CAJ24208; CAJ24208; XCV2531.
DR   KEGG; xcv:XCV2531; -.
DR   eggNOG; COG2021; Bacteria.
DR   HOGENOM; CLU_028760_1_2_6; -.
DR   OMA; TRFCVVS; -.
DR   UniPathway; UPA00136; UER00199.
DR   Proteomes; UP000007069; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0016750; F:O-succinyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006535; P:cysteine biosynthetic process from serine; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.1820; -; 2.
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; Cysteine biosynthesis; Cytoplasm;
KW   Transferase.
FT   CHAIN           1..400
FT                   /note="Serine O-succinyltransferase"
FT                   /id="PRO_0000231890"
FT   DOMAIN          45..385
FT                   /note="AB hydrolase-1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   REGION          52..55
FT                   /note="Important for substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        149
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        346
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   ACT_SITE        379
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   BINDING         218
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   BINDING         380
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
FT   SITE            186
FT                   /note="Important for acyl-CoA specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00296"
SQ   SEQUENCE   400 AA;  43111 MW;  B2F8F8380CD65B38 CRC64;
     MTEFIPAGTL YHALPSPFPM KRGGVLHQAR VAYETWGTLA ADRSNAILIV TGLSPNAHAA
     ANQANPEPGW WEAMLGPGKP IDTARWFVVC VNSLGSCKGS TGPASVNPAT GAPYRLSFPD
     LSIEDVADAA ADVVRALGIA QLACLIGNSM GGMTALALLL RHPGIARSHI NISGSAQALP
     FSIAIRSLQR EAIRLDPHWN GGHYDDARYP ESGMRMARKL GVITYRSALE WDGRFGRVRL
     DSEQAADDPF GLEFQVESYL EGHARRFVRF FDPNCYLYLS RSMDWFDLAE HVDEQPATDS
     AIDHAHADAL PASAKPQTGV STADTVLAGL ARIRIARALA IGANTDILFP VQQQEQIADG
     LRAGGADAHF IGLDSPQGHD AFLVDFARFG PAVRDFLQDC