SERC_XENNA
ID SERC_XENNA Reviewed; 362 AA.
AC Q8RLW0; D3VBI6;
DT 16-MAY-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2002, sequence version 1.
DT 03-AUG-2022, entry version 110.
DE RecName: Full=Phosphoserine aminotransferase {ECO:0000255|HAMAP-Rule:MF_00160};
DE EC=2.6.1.52 {ECO:0000255|HAMAP-Rule:MF_00160};
DE AltName: Full=Phosphohydroxythreonine aminotransferase {ECO:0000255|HAMAP-Rule:MF_00160};
DE Short=PSAT {ECO:0000255|HAMAP-Rule:MF_00160};
GN Name=serC {ECO:0000255|HAMAP-Rule:MF_00160}; OrderedLocusNames=XNC1_1562;
OS Xenorhabdus nematophila (strain ATCC 19061 / DSM 3370 / CCUG 14189 / LMG
OS 1036 / NCIMB 9965 / AN6).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Morganellaceae; Xenorhabdus.
OX NCBI_TaxID=406817;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=12207701; DOI=10.1046/j.1365-2958.2002.03100.x;
RA Heungens K., Cowles C.E., Goodrich-Blair H.;
RT "Identification of Xenorhabdus nematophila genes required for mutualistic
RT colonization of Steinernema carpocapsae nematodes.";
RL Mol. Microbiol. 45:1337-1353(2002).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 19061 / DSM 3370 / CCUG 14189 / LMG 1036 / NCIMB 9965 / AN6;
RX PubMed=22125637; DOI=10.1371/journal.pone.0027909;
RA Chaston J.M., Suen G., Tucker S.L., Andersen A.W., Bhasin A., Bode E.,
RA Bode H.B., Brachmann A.O., Cowles C.E., Cowles K.N., Darby C., de Leon L.,
RA Drace K., Du Z., Givaudan A., Herbert Tran E.E., Jewell K.A., Knack J.J.,
RA Krasomil-Osterfeld K.C., Kukor R., Lanois A., Latreille P.,
RA Leimgruber N.K., Lipke C.M., Liu R., Lu X., Martens E.C., Marri P.R.,
RA Medigue C., Menard M.L., Miller N.M., Morales-Soto N., Norton S.,
RA Ogier J.C., Orchard S.S., Park D., Park Y., Qurollo B.A., Sugar D.R.,
RA Richards G.R., Rouy Z., Slominski B., Slominski K., Snyder H., Tjaden B.C.,
RA van der Hoeven R., Welch R.D., Wheeler C., Xiang B., Barbazuk B.,
RA Gaudriault S., Goodner B., Slater S.C., Forst S., Goldman B.S.,
RA Goodrich-Blair H.;
RT "The entomopathogenic bacterial endosymbionts xenorhabdus and photorhabdus:
RT convergent lifestyles from divergent genomes.";
RL PLoS ONE 6:E27909-E27909(2011).
CC -!- FUNCTION: Catalyzes the reversible conversion of 3-
CC phosphohydroxypyruvate to phosphoserine and of 3-hydroxy-2-oxo-4-
CC phosphonooxybutanoate to phosphohydroxythreonine. {ECO:0000255|HAMAP-
CC Rule:MF_00160}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-oxoglutarate + O-phospho-L-serine = 3-phosphooxypyruvate +
CC L-glutamate; Xref=Rhea:RHEA:14329, ChEBI:CHEBI:16810,
CC ChEBI:CHEBI:18110, ChEBI:CHEBI:29985, ChEBI:CHEBI:57524; EC=2.6.1.52;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00160};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-oxoglutarate + 4-(phosphooxy)-L-threonine = (R)-3-hydroxy-2-
CC oxo-4-phosphooxybutanoate + L-glutamate; Xref=Rhea:RHEA:16573,
CC ChEBI:CHEBI:16810, ChEBI:CHEBI:29985, ChEBI:CHEBI:58452,
CC ChEBI:CHEBI:58538; EC=2.6.1.52; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00160};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00160};
CC Note=Binds 1 pyridoxal phosphate per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00160};
CC -!- PATHWAY: Amino-acid biosynthesis; L-serine biosynthesis; L-serine from
CC 3-phospho-D-glycerate: step 2/3. {ECO:0000255|HAMAP-Rule:MF_00160}.
CC -!- PATHWAY: Cofactor biosynthesis; pyridoxine 5'-phosphate biosynthesis;
CC pyridoxine 5'-phosphate from D-erythrose 4-phosphate: step 3/5.
CC {ECO:0000255|HAMAP-Rule:MF_00160}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00160}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00160}.
CC -!- SIMILARITY: Belongs to the class-V pyridoxal-phosphate-dependent
CC aminotransferase family. SerC subfamily. {ECO:0000255|HAMAP-
CC Rule:MF_00160}.
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DR EMBL; AY077462; AAL79609.1; -; Genomic_DNA.
DR EMBL; FN667742; CBJ89625.1; -; Genomic_DNA.
DR RefSeq; WP_013183920.1; NC_014228.1.
DR AlphaFoldDB; Q8RLW0; -.
DR SMR; Q8RLW0; -.
DR STRING; 406817.XNC1_1562; -.
DR EnsemblBacteria; CBJ89625; CBJ89625; XNC1_1562.
DR KEGG; xne:XNC1_1562; -.
DR eggNOG; COG1932; Bacteria.
DR HOGENOM; CLU_034866_0_2_6; -.
DR OMA; GYRASMY; -.
DR UniPathway; UPA00135; UER00197.
DR UniPathway; UPA00244; UER00311.
DR Proteomes; UP000008075; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0004648; F:O-phospho-L-serine:2-oxoglutarate aminotransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006564; P:L-serine biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0008615; P:pyridoxine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd00611; PSAT_like; 1.
DR Gene3D; 3.40.640.10; -; 1.
DR Gene3D; 3.90.1150.10; -; 1.
DR HAMAP; MF_00160; SerC_aminotrans_5; 1.
DR InterPro; IPR000192; Aminotrans_V_dom.
DR InterPro; IPR020578; Aminotrans_V_PyrdxlP_BS.
DR InterPro; IPR022278; Pser_aminoTfrase.
DR InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR PANTHER; PTHR43247; PTHR43247; 1.
DR Pfam; PF00266; Aminotran_5; 1.
DR PIRSF; PIRSF000525; SerC; 1.
DR SUPFAM; SSF53383; SSF53383; 1.
DR TIGRFAMs; TIGR01364; serC_1; 1.
DR PROSITE; PS00595; AA_TRANSFER_CLASS_5; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Aminotransferase; Cytoplasm; Pyridoxal phosphate;
KW Pyridoxine biosynthesis; Reference proteome; Serine biosynthesis;
KW Transferase.
FT CHAIN 1..362
FT /note="Phosphoserine aminotransferase"
FT /id="PRO_0000150223"
FT BINDING 42
FT /ligand="L-glutamate"
FT /ligand_id="ChEBI:CHEBI:29985"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT BINDING 76..77
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT BINDING 102
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT BINDING 153
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT BINDING 174
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT BINDING 197
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT BINDING 239..240
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT MOD_RES 198
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
SQ SEQUENCE 362 AA; 40013 MW; 552A1E156DBE6A98 CRC64;
MNQVYNFSAG PAMLPAEVLR RAEQELCNWH GLGTSVMEIS HRSKEFIAVA AEAEKDLRDL
LAIPENYNVL FCHGGARGQF SALPQNLLGD KSTADYIVSG YWSECAAKEA EKYCTPNIID
IRSNTDGITS VKPMNEWALS SDAAYVHYCP NETIEGTAIF EEPDFGDDKI VIADYSSTIL
SAPIDVSRYG VIYAGAQKNI GPAGITVVII REDLLGKAHK HIPSILDYTV QVKADSMYNT
PPTFAWYLSG MVFKWLKEQG GLQEISKRNL AKAELLYRAI DNSNLYINRV ALQNRSIMNV
PFQLVNPALD GKFLEEAYAH GLHALKGHKV AGGARASIYN AMSYEGVKAL VEFMADFERR
NG
