SERC_ERWT9
ID SERC_ERWT9 Reviewed; 361 AA.
AC B2VC80;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-2008, sequence version 1.
DT 03-AUG-2022, entry version 82.
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=ETA_21450;
OS Erwinia tasmaniensis (strain DSM 17950 / CFBP 7177 / CIP 109463 / NCPPB
OS 4357 / Et1/99).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Erwiniaceae; Erwinia.
OX NCBI_TaxID=465817;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17950 / CFBP 7177 / CIP 109463 / NCPPB 4357 / Et1/99;
RX PubMed=18462403; DOI=10.1111/j.1462-2920.2008.01639.x;
RA Kube M., Migdoll A.M., Mueller I., Kuhl H., Beck A., Reinhardt R.,
RA Geider K.;
RT "The genome of Erwinia tasmaniensis strain Et1/99, a non-pathogenic
RT bacterium in the genus Erwinia.";
RL Environ. Microbiol. 10:2211-2222(2008).
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; CU468135; CAO97191.1; -; Genomic_DNA.
DR RefSeq; WP_012441862.1; NC_010694.1.
DR AlphaFoldDB; B2VC80; -.
DR SMR; B2VC80; -.
DR STRING; 465817.ETA_21450; -.
DR EnsemblBacteria; CAO97191; CAO97191; ETA_21450.
DR KEGG; eta:ETA_21450; -.
DR eggNOG; COG1932; Bacteria.
DR HOGENOM; CLU_034866_0_2_6; -.
DR OMA; GYRASMY; -.
DR OrthoDB; 996960at2; -.
DR UniPathway; UPA00135; UER00197.
DR UniPathway; UPA00244; UER00311.
DR Proteomes; UP000001726; 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..361
FT /note="Phosphoserine aminotransferase"
FT /id="PRO_1000203538"
FT BINDING 9
FT /ligand="L-glutamate"
FT /ligand_id="ChEBI:CHEBI:29985"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
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 173
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT BINDING 196
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT BINDING 238..239
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT MOD_RES 197
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
SQ SEQUENCE 361 AA; 39757 MW; BE7A3E01D743E64F CRC64;
MSQIFNFSSG PAMLPVEVLR RAEQELCNWR GLGTSVMEIS HRSKEFIQVA EEAEKDFRDL
LKIPSNYKVL FCHGGARGQF AAVPLNLLGQ HGKADYVDGG YWAASAIKEA QKYCTPNVID
AKTTLNGLRA ISPMNSWELS DDAAYVHFCP NETIDGIAIH ETPDFGDKTV VADLSSTILS
TPIDVSRYGV LYAGAQKNIG PAGLTLVVVR EDLLGHARKE LPSILDYTVL AENDSMFNTP
PTFAWYLSGL VFKWLKEQGG VGELDKRNQA KADLLYGTID SSDFYRNDVA VANRSRMNVP
FQLADAALDK LFLEESFAAG LHALKGHRVV GGMRASIYNA MPLAGVKTLT DFMIDFERRH
G
