ID   GLYA_SALHS              Reviewed;         417 AA.
AC   B4TDC8;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   03-AUG-2022, entry version 74.
DE   RecName: Full=Serine hydroxymethyltransferase {ECO:0000255|HAMAP-Rule:MF_00051};
DE            Short=SHMT {ECO:0000255|HAMAP-Rule:MF_00051};
DE            Short=Serine methylase {ECO:0000255|HAMAP-Rule:MF_00051};
DE            EC=2.1.2.1 {ECO:0000255|HAMAP-Rule:MF_00051};
GN   Name=glyA {ECO:0000255|HAMAP-Rule:MF_00051}; OrderedLocusNames=SeHA_C2817;
OS   Salmonella heidelberg (strain SL476).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=454169;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SL476;
RX   PubMed=21602358; DOI=10.1128/jb.00297-11;
RA   Fricke W.F., Mammel M.K., McDermott P.F., Tartera C., White D.G.,
RA   Leclerc J.E., Ravel J., Cebula T.A.;
RT   "Comparative genomics of 28 Salmonella enterica isolates: evidence for
RT   CRISPR-mediated adaptive sublineage evolution.";
RL   J. Bacteriol. 193:3556-3568(2011).
CC   -!- FUNCTION: Catalyzes the reversible interconversion of serine and
CC       glycine with tetrahydrofolate (THF) serving as the one-carbon carrier.
CC       This reaction serves as the major source of one-carbon groups required
CC       for the biosynthesis of purines, thymidylate, methionine, and other
CC       important biomolecules. Also exhibits THF-independent aldolase activity
CC       toward beta-hydroxyamino acids, producing glycine and aldehydes, via a
CC       retro-aldol mechanism. {ECO:0000255|HAMAP-Rule:MF_00051}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + glycine + H2O =
CC         (6S)-5,6,7,8-tetrahydrofolate + L-serine; Xref=Rhea:RHEA:15481,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15636, ChEBI:CHEBI:33384,
CC         ChEBI:CHEBI:57305, ChEBI:CHEBI:57453; EC=2.1.2.1;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00051};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00051};
CC   -!- PATHWAY: One-carbon metabolism; tetrahydrofolate interconversion.
CC       {ECO:0000255|HAMAP-Rule:MF_00051}.
CC   -!- PATHWAY: Amino-acid biosynthesis; glycine biosynthesis; glycine from L-
CC       serine: step 1/1. {ECO:0000255|HAMAP-Rule:MF_00051}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00051}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00051}.
CC   -!- SIMILARITY: Belongs to the SHMT family. {ECO:0000255|HAMAP-
CC       Rule:MF_00051}.
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DR   EMBL; CP001120; ACF69435.1; -; Genomic_DNA.
DR   RefSeq; WP_000919178.1; NC_011083.1.
DR   AlphaFoldDB; B4TDC8; -.
DR   SMR; B4TDC8; -.
DR   KEGG; seh:SeHA_C2817; -.
DR   HOGENOM; CLU_022477_2_1_6; -.
DR   OMA; SHPAGLI; -.
DR   UniPathway; UPA00193; -.
DR   UniPathway; UPA00288; UER01023.
DR   Proteomes; UP000001866; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004372; F:glycine hydroxymethyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019264; P:glycine biosynthetic process from serine; IEA:UniProtKB-UniRule.
DR   GO; GO:0035999; P:tetrahydrofolate interconversion; IEA:UniProtKB-UniPathway.
DR   CDD; cd00378; SHMT; 1.
DR   Gene3D; 3.40.640.10; -; 1.
DR   Gene3D; 3.90.1150.10; -; 1.
DR   HAMAP; MF_00051; SHMT; 1.
DR   InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR   InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR   InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR   InterPro; IPR001085; Ser_HO-MeTrfase.
DR   InterPro; IPR019798; Ser_HO-MeTrfase_PLP_BS.
DR   InterPro; IPR039429; SHMT-like_dom.
DR   PANTHER; PTHR11680; PTHR11680; 1.
DR   Pfam; PF00464; SHMT; 1.
DR   PIRSF; PIRSF000412; SHMT; 1.
DR   SUPFAM; SSF53383; SSF53383; 1.
DR   PROSITE; PS00096; SHMT; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; One-carbon metabolism;
KW   Pyridoxal phosphate; Transferase.
FT   CHAIN           1..417
FT                   /note="Serine hydroxymethyltransferase"
FT                   /id="PRO_1000091574"
FT   BINDING         121
FT                   /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57453"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   BINDING         125..127
FT                   /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57453"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   BINDING         355..357
FT                   /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57453"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   SITE            228
FT                   /note="Plays an important role in substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   MOD_RES         229
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
SQ   SEQUENCE   417 AA;  45455 MW;  3AA2E7EAF302042C CRC64;
     MLKREMNIAD YDAELWQAME QEKVRQEEHI ELIASENYTS PRVMQAQGSQ LTNKYAEGYP
     GKRYYGGCEY VDVVEQLAID RAKELFGADY ANVQPHSGSQ ANFAVYTALL QPGDTVLGMN
     LAQGGHLTHG SPVNFSGKLY NIVPYGIDES GKIDYDEMAK LAKEHKPKMI IGGFSAYSGV
     VDWAKMREIA DSIGAYLFVD MAHVAGLIAA GVYPNPVPHA HVVTTTTHKT LAGPRGGLIL
     AKGGDEELYK KLNSAVFPSA QGGPLMHVIA GKAVALKEAM EPEFKVYQQQ VAKNAKAMVE
     VFLNRGYKVV SGGTENHLFL LDLVDKNLTG KEADAALGRA NITVNKNSVP NDPKSPFVTS
     GIRIGSPAVT RRGFKEAEVK ELAGWMCDVL DNINDEATIE RVKAKVLDIC ARFPVYA