ID   GLYA_PYRAE              Reviewed;         430 AA.
AC   Q8ZYF9;
DT   27-MAR-2002, integrated into UniProtKB/Swiss-Prot.
DT   27-MAR-2002, sequence version 1.
DT   03-AUG-2022, entry version 112.
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=PAE0798;
OS   Pyrobaculum aerophilum (strain ATCC 51768 / DSM 7523 / JCM 9630 / CIP
OS   104966 / NBRC 100827 / IM2).
OC   Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae;
OC   Pyrobaculum.
OX   NCBI_TaxID=178306;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51768 / DSM 7523 / JCM 9630 / CIP 104966 / NBRC 100827 / IM2;
RX   PubMed=11792869; DOI=10.1073/pnas.241636498;
RA   Fitz-Gibbon S.T., Ladner H., Kim U.-J., Stetter K.O., Simon M.I.,
RA   Miller J.H.;
RT   "Genome sequence of the hyperthermophilic crenarchaeon Pyrobaculum
RT   aerophilum.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:984-989(2002).
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}.
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DR   EMBL; AE009441; AAL63034.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q8ZYF9; -.
DR   SMR; Q8ZYF9; -.
DR   STRING; 178306.PAE0798; -.
DR   EnsemblBacteria; AAL63034; AAL63034; PAE0798.
DR   KEGG; pai:PAE0798; -.
DR   PATRIC; fig|178306.9.peg.583; -.
DR   eggNOG; arCOG00070; Archaea.
DR   HOGENOM; CLU_022477_2_1_2; -.
DR   InParanoid; Q8ZYF9; -.
DR   OMA; SHPAGLI; -.
DR   UniPathway; UPA00288; UER01023.
DR   Proteomes; UP000002439; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR   GO; GO:0004372; F:glycine hydroxymethyltransferase activity; IBA:GO_Central.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IBA:GO_Central.
DR   GO; GO:0070905; F:serine binding; IBA:GO_Central.
DR   GO; GO:0008270; F:zinc ion binding; IBA:GO_Central.
DR   GO; GO:0046655; P:folic acid metabolic process; IBA:GO_Central.
DR   GO; GO:0019264; P:glycine biosynthetic process from serine; IBA:GO_Central.
DR   GO; GO:0006565; P:L-serine catabolic process; IBA:GO_Central.
DR   GO; GO:0006730; P:one-carbon metabolic process; IBA:GO_Central.
DR   GO; GO:0035999; P:tetrahydrofolate interconversion; IEA:InterPro.
DR   GO; GO:0046653; P:tetrahydrofolate metabolic process; IBA:GO_Central.
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..430
FT                   /note="Serine hydroxymethyltransferase"
FT                   /id="PRO_0000113720"
FT   BINDING         120..122
FT                   /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57453"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   SITE            225
FT                   /note="Plays an important role in substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   MOD_RES         226
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
SQ   SEQUENCE   430 AA;  47706 MW;  1A23E484D59DC724 CRC64;
     MLPREIEELL NIILQHNTWR RKETINLIAS ENVMSPLAEL VYVNDFAGRY AEGTVGNRYY
     QGTKYVDILE DSLSKRFAKV LDAKFVDVRP ISGTIANLAT YHALVPEGGI VASLPVKYGG
     HISHNTVGGL KALRVKTVEL PWDFENFNID IDAARKIIEE KRPNLIILGA SLYLFPHPVR
     EIANAAKAVG AYVLHDSAHV FGLIIGGVFP NPLKEGAHVI TSSTHKTFPG PQGGLIASVT
     DEELNNAIQR AVFPVFTSNY HLHRYAATYV TLIEMEHFGA EYGARIVENA KALAEALAEE
     GVTPVGERLG YTKTHQVAVD VSKFGGGDKV ARLLEEANII VNKNALPWDK SVLKPSGIRM
     GVQEMTRFGM GKGEMKEIAK FIARVLKGED PTAVKREVVE FRKTFIEIKY GFKIDKEIID
     KIFYSLNLYT