ID   GLYA_RICTY              Reviewed;         420 AA.
AC   Q68W07;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   11-OCT-2004, sequence version 1.
DT   27-MAR-2024, entry version 104.
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=RT0728;
OS   Rickettsia typhi (strain ATCC VR-144 / Wilmington).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; typhus group.
OX   NCBI_TaxID=257363;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC VR-144 / Wilmington;
RX   PubMed=15317790; DOI=10.1128/jb.186.17.5842-5855.2004;
RA   McLeod M.P., Qin X., Karpathy S.E., Gioia J., Highlander S.K., Fox G.E.,
RA   McNeill T.Z., Jiang H., Muzny D., Jacob L.S., Hawes A.C., Sodergren E.,
RA   Gill R., Hume J., Morgan M., Fan G., Amin A.G., Gibbs R.A., Hong C.,
RA   Yu X.-J., Walker D.H., Weinstock G.M.;
RT   "Complete genome sequence of Rickettsia typhi and comparison with sequences
RT   of other Rickettsiae.";
RL   J. Bacteriol. 186:5842-5855(2004).
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}.
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; AE017197; AAU04185.1; -; Genomic_DNA.
DR   RefSeq; WP_011191161.1; NC_006142.1.
DR   AlphaFoldDB; Q68W07; -.
DR   SMR; Q68W07; -.
DR   KEGG; rty:RT0728; -.
DR   eggNOG; COG0112; Bacteria.
DR   HOGENOM; CLU_022477_2_1_5; -.
DR   OrthoDB; 9803846at2; -.
DR   UniPathway; UPA00193; -.
DR   UniPathway; UPA00288; UER01023.
DR   Proteomes; UP000000604; 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:SF28; 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   Amino-acid biosynthesis; Cytoplasm; One-carbon metabolism;
KW   Pyridoxal phosphate; Transferase.
FT   CHAIN           1..420
FT                   /note="Serine hydroxymethyltransferase"
FT                   /id="PRO_0000113655"
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         246
FT                   /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57453"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   BINDING         354..356
FT                   /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57453"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   SITE            229
FT                   /note="Plays an important role in substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   MOD_RES         230
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
SQ   SEQUENCE   420 AA;  46198 MW;  838C845277D135B5 CRC64;
     MNILNNNLYG MDKEIYEIIK NEKLRQNNVI ELIASENFVS SAVLEAQGSI LTNKYAEGYP
     SKRFYNGCDE VDKAEVLAIE RAKKLFNCKY ANVQPHSGSQ ANQAVYLALL QPCDTILGMS
     LDSGGHLTHG AAPNISGKWF NTVAYNVDKE TYLIDYDEIK RLAVLHNPKL LIAGFSAYPR
     KIDFARFREI ADKVGAYLMA DIAHIAGLVA TGEHQSPIPY AHVVTSTTHK TLRGPRGGLI
     LSDYEEIGKK INSALFPGLQ GGPLMHVIAA KAVAFLENLQ PEYKCYIKQV ISNAKALAIS
     LQERGYDILT GGTDNHIVLV DLRKDGITGK CAANSLDRAG ITCNKNAIPF DTTSPFVTSG
     IRFGTSACTT KGFKEKDFVL IGHMVAEILD GLKNNEDNSK TEQKVLSEVK KLIKLFPFYD
//