ID   GLYA_SULAC              Reviewed;         433 AA.
AC   Q4J937;
DT   27-SEP-2005, integrated into UniProtKB/Swiss-Prot.
DT   02-AUG-2005, sequence version 1.
DT   03-AUG-2022, entry version 95.
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.- {ECO:0000255|HAMAP-Rule:MF_00051};
GN   Name=glyA {ECO:0000255|HAMAP-Rule:MF_00051}; OrderedLocusNames=Saci_1358;
OS   Sulfolobus acidocaldarius (strain ATCC 33909 / DSM 639 / JCM 8929 / NBRC
OS   15157 / NCIMB 11770).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Sulfolobus.
OX   NCBI_TaxID=330779;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33909 / DSM 639 / JCM 8929 / NBRC 15157 / NCIMB 11770;
RX   PubMed=15995215; DOI=10.1128/jb.187.14.4992-4999.2005;
RA   Chen L., Bruegger K., Skovgaard M., Redder P., She Q., Torarinsson E.,
RA   Greve B., Awayez M., Zibat A., Klenk H.-P., Garrett R.A.;
RT   "The genome of Sulfolobus acidocaldarius, a model organism of the
RT   Crenarchaeota.";
RL   J. Bacteriol. 187:4992-4999(2005).
CC   -!- FUNCTION: Catalyzes the reversible interconversion of serine and
CC       glycine with a modified folate serving as the one-carbon carrier. Also
CC       exhibits a pteridine-independent aldolase activity toward beta-
CC       hydroxyamino acids, producing glycine and aldehydes, via a retro-aldol
CC       mechanism. {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: 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; CP000077; AAY80693.1; -; Genomic_DNA.
DR   RefSeq; WP_011278195.1; NC_007181.1.
DR   AlphaFoldDB; Q4J937; -.
DR   SMR; Q4J937; -.
DR   STRING; 330779.Saci_1358; -.
DR   EnsemblBacteria; AAY80693; AAY80693; Saci_1358.
DR   GeneID; 3473471; -.
DR   KEGG; sai:Saci_1358; -.
DR   PATRIC; fig|330779.12.peg.1311; -.
DR   eggNOG; arCOG00070; Archaea.
DR   HOGENOM; CLU_022477_2_1_2; -.
DR   OMA; SHPAGLI; -.
DR   UniPathway; UPA00288; UER01023.
DR   Proteomes; UP000001018; 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:InterPro.
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; Reference proteome; Transferase.
FT   CHAIN           1..433
FT                   /note="Serine hydroxymethyltransferase"
FT                   /id="PRO_0000113724"
FT   BINDING         122..124
FT                   /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57453"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   SITE            227
FT                   /note="Plays an important role in substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   MOD_RES         228
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
SQ   SEQUENCE   433 AA;  48313 MW;  D8EDEA9014A4DA4F CRC64;
     MDKIPEELEK ILQITREQNR WRRLETINLI PSENVMSPLA ESVYMSDFMY RYAEGKPFKR
     YYQGTKYADE IEELAMKLVS EISSSKYADL RAVSGTIANA GVFRVLADSG DKAVIAPVQA
     GAHVSHTRFG TLGALGIEQI EMPYDQESMN VDVDKAIKLI EEVKPKFVTL GGSLYLFPHP
     VKELAPHVHA VGAKLVYDSA HVYGLIVGKA WHNPLEEGAD VVTASTHKTF PGPQGGLIVT
     NDDSLYKKVS DTIFPWFVSN HHLHRLPSTA ITALEMKYFG KEYAQQIVKN AKALAEALAA
     EGFKVIGEHL GFTKSHQVAI DVRNLGGGAK VAKLFEEANI IANKNLLPYD PPSAVKDPSG
     VRLGVQEMTR FGMKEEEMRI IARLMREVAI ENKDVKEVKK KVTEFRKEFL EVKYTFTNVD
     LAKYSSKVIS LLI