ID   GLYA_ECOL5              Reviewed;         417 AA.
AC   Q0TET8;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-SEP-2006, sequence version 1.
DT   27-MAR-2024, entry version 101.
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};
GN   OrderedLocusNames=ECP_2552;
OS   Escherichia coli O6:K15:H31 (strain 536 / UPEC).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=362663;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=536 / UPEC;
RX   PubMed=16879640; DOI=10.1111/j.1365-2958.2006.05255.x;
RA   Hochhut B., Wilde C., Balling G., Middendorf B., Dobrindt U.,
RA   Brzuszkiewicz E., Gottschalk G., Carniel E., Hacker J.;
RT   "Role of pathogenicity island-associated integrases in the genome
RT   plasticity of uropathogenic Escherichia coli strain 536.";
RL   Mol. Microbiol. 61:584-595(2006).
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; CP000247; ABG70541.1; -; Genomic_DNA.
DR   RefSeq; WP_000919159.1; NC_008253.1.
DR   AlphaFoldDB; Q0TET8; -.
DR   SMR; Q0TET8; -.
DR   GeneID; 83579904; -.
DR   KEGG; ecp:ECP_2552; -.
DR   HOGENOM; CLU_022477_2_1_6; -.
DR   UniPathway; UPA00193; -.
DR   UniPathway; UPA00288; UER01023.
DR   Proteomes; UP000009182; 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; 3.90.1150.10; Aspartate Aminotransferase, domain 1; 1.
DR   Gene3D; 3.40.640.10; Type I PLP-dependent aspartate aminotransferase-like (Major domain); 1.
DR   HAMAP; MF_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; SERINE HYDROXYMETHYLTRANSFERASE; 1.
DR   PANTHER; PTHR11680:SF50; SERINE HYDROXYMETHYLTRANSFERASE; 1.
DR   Pfam; PF00464; SHMT; 1.
DR   PIRSF; PIRSF000412; SHMT; 1.
DR   SUPFAM; SSF53383; PLP-dependent transferases; 1.
DR   PROSITE; PS00096; SHMT; 1.
PE   3: Inferred from homology;
KW   Acetylation; Amino-acid biosynthesis; Cytoplasm; One-carbon metabolism;
KW   Pyridoxal phosphate; Transferase.
FT   CHAIN           1..417
FT                   /note="Serine hydroxymethyltransferase"
FT                   /id="PRO_1000006246"
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         54
FT                   /note="N6-acetyllysine"
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"
FT   MOD_RES         250
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   MOD_RES         285
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   MOD_RES         354
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   MOD_RES         375
FT                   /note="N6-acetyllysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
SQ   SEQUENCE   417 AA;  45317 MW;  13E5558E99938539 CRC64;
     MLKREMNIAD YDAELWQAME QEKVRQEEHI ELIASENYTS PRVMQAQGSQ LTNKYAEGYP
     GKRYYGGCEY VDIVEQLAID RAKELFGADY ANVQPHSGSQ ANFAVYTALL EPGDTVLGMN
     LAHGGHLTHG SPVNFSGKLY NIVPYGIDAT GHIDYADLEK QAKEHKPKMI IGGFSAYSGV
     VDWAKMREIA DSIGAYLFVD MAHVAGLVAA GVYPNPVPHA HVVTTTTHKT LAGPRGGLIL
     AKGGSEELYK KLNSAVFPGG QGGPLMHVIA GKAVALKEAM EPEFKTYQQQ VAKNAKAMVE
     VFLERGYKVV SGGTDNHLFL VDLVDKNLTG KEADAALGRA NITVNKNSVP NDPKSPFVTS
     GIRVGTPAIT RRGFKEAEAK ELAGWMCDVL DSINDEAVIE RIKGKVLDIC ARYPVYA
//