ID   SERC_FLAJ1              Reviewed;         356 AA.
AC   A5FH28;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   27-MAR-2024, entry version 87.
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};
GN   OrderedLocusNames=Fjoh_2462;
OS   Flavobacterium johnsoniae (strain ATCC 17061 / DSM 2064 / JCM 8514 / NBRC
OS   14942 / NCIMB 11054 / UW101) (Cytophaga johnsonae).
OC   Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales;
OC   Flavobacteriaceae; Flavobacterium.
OX   NCBI_TaxID=376686;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 17061 / DSM 2064 / JCM 8514 / NBRC 14942 / NCIMB 11054 /
RC   UW101;
RX   PubMed=19717629; DOI=10.1128/aem.01495-09;
RA   McBride M.J., Xie G., Martens E.C., Lapidus A., Henrissat B., Rhodes R.G.,
RA   Goltsman E., Wang W., Xu J., Hunnicutt D.W., Staroscik A.M., Hoover T.R.,
RA   Cheng Y.Q., Stein J.L.;
RT   "Novel features of the polysaccharide-digesting gliding bacterium
RT   Flavobacterium johnsoniae as revealed by genome sequence analysis.";
RL   Appl. Environ. Microbiol. 75:6864-6875(2009).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000685; ABQ05489.1; -; Genomic_DNA.
DR   RefSeq; WP_012024528.1; NZ_MUGZ01000022.1.
DR   AlphaFoldDB; A5FH28; -.
DR   SMR; A5FH28; -.
DR   STRING; 376686.Fjoh_2462; -.
DR   KEGG; fjo:Fjoh_2462; -.
DR   eggNOG; COG1932; Bacteria.
DR   HOGENOM; CLU_034866_0_2_10; -.
DR   OrthoDB; 9809412at2; -.
DR   UniPathway; UPA00135; UER00197.
DR   UniPathway; UPA00244; UER00311.
DR   Proteomes; UP000006694; 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   Gene3D; 3.90.1150.10; Aspartate Aminotransferase, domain 1; 1.
DR   Gene3D; 3.40.640.10; Type I PLP-dependent aspartate aminotransferase-like (Major domain); 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; PHOSPHOSERINE AMINOTRANSFERASE; 1.
DR   PANTHER; PTHR43247:SF1; PHOSPHOSERINE AMINOTRANSFERASE; 1.
DR   Pfam; PF00266; Aminotran_5; 1.
DR   PIRSF; PIRSF000525; SerC; 1.
DR   SUPFAM; SSF53383; PLP-dependent transferases; 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; Serine biosynthesis; Transferase.
FT   CHAIN           1..356
FT                   /note="Phosphoserine aminotransferase"
FT                   /id="PRO_1000076906"
FT   BINDING         41
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         150
FT                   /ligand="pyridoxal 5'-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:597326"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT   BINDING         169
FT                   /ligand="pyridoxal 5'-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:597326"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT   BINDING         192
FT                   /ligand="pyridoxal 5'-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:597326"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT   BINDING         234..235
FT                   /ligand="pyridoxal 5'-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:597326"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
FT   MOD_RES         193
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00160"
SQ   SEQUENCE   356 AA;  38871 MW;  001013680A26430E CRC64;
     MKKHNYSAGP SILPQEVFEK ASKAVLNFND SGLSILEISH RSKDFVAVMD EARSLALELL
     GLQGKGYQAL FLQGGASTAF LMAPYNLMKE NGKAAYLDSG TWATAAIKEA KLFGETVIVG
     SSKDDNYTYI PKGYEIPADA DYFHCTSNNT IFGTQIQEFP STNIPVVCDM SSDIFSRELD
     FSKFDLIYAG AQKNMGPAGT TLVVVKEEIL GKNGRTIPSM LDYAKHIKAE SMYNTPSVFA
     VYVSLLTLQW IKAKGGIAAV EKLNNAKADL LYAEIDRNPL FKGAANVEDR SKMNVTFLLN
     NPEHTETFDA LWKAAGISGL PGHRSVGGYR ASIYNAMPIE SVQVLVDVMK ALESKV
//