GLYA_AYWBP
ID GLYA_AYWBP Reviewed; 429 AA.
AC Q2NIT8;
DT 16-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT 07-FEB-2006, sequence version 1.
DT 03-AUG-2022, entry version 92.
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=AYWB_538;
OS Aster yellows witches'-broom phytoplasma (strain AYWB).
OC Bacteria; Tenericutes; Mollicutes; Acholeplasmatales; Acholeplasmataceae;
OC Candidatus Phytoplasma; Candidatus Phytoplasma asteris.
OX NCBI_TaxID=322098;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AYWB;
RX PubMed=16672622; DOI=10.1128/jb.188.10.3682-3696.2006;
RA Bai X., Zhang J., Ewing A., Miller S.A., Jancso Radek A., Shevchenko D.V.,
RA Tsukerman K., Walunas T., Lapidus A., Campbell J.W., Hogenhout S.A.;
RT "Living with genome instability: the adaptation of phytoplasmas to diverse
RT environments of their insect and plant hosts.";
RL J. Bacteriol. 188:3682-3696(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; CP000061; ABC65655.1; -; Genomic_DNA.
DR AlphaFoldDB; Q2NIT8; -.
DR SMR; Q2NIT8; -.
DR STRING; 322098.AYWB_538; -.
DR PRIDE; Q2NIT8; -.
DR EnsemblBacteria; ABC65655; ABC65655; AYWB_538.
DR KEGG; ayw:AYWB_538; -.
DR eggNOG; COG0112; Bacteria.
DR HOGENOM; CLU_022477_2_1_14; -.
DR OMA; SHPAGLI; -.
DR PhylomeDB; Q2NIT8; -.
DR UniPathway; UPA00193; -.
DR UniPathway; UPA00288; UER01023.
DR Proteomes; UP000001934; 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..429
FT /note="Serine hydroxymethyltransferase"
FT /id="PRO_0000234947"
FT BINDING 133
FT /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT /ligand_id="ChEBI:CHEBI:57453"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT BINDING 137..139
FT /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT /ligand_id="ChEBI:CHEBI:57453"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT BINDING 259
FT /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT /ligand_id="ChEBI:CHEBI:57453"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT SITE 242
FT /note="Plays an important role in substrate specificity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT MOD_RES 243
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
SQ SEQUENCE 429 AA; 47789 MW; CB2B3D1E2AB3FB67 CRC64;
MPKNTKRKRL CPKMNQKLGL KDQDQEIFDL IEQEKARQKE NILLIASENF VSQAVLDAQG
SILTNKYAEG YPQARYYNGC KNVDQIEKIA IQRATKLFGA KYANVQPHSG SQANMGVFQA
LLKPGDKILG LSLMDGGHLT HGHKLSFSGG FYEAHFYNVN PQTEMLDYDE IRKVALAVKP
KLIIAGYSAY SKTINFKKFR QIADEVNAYL IADIAHIAGL VACGLHPCPF EANADVVTST
MHKTLRGPRG GLILTNKEEL FKKINRGIFP GIQGGPCIHT IAAKAVAFQE AMMPSFKEYQ
KQVIKNANTF AKAFQQKGYR IVSGSTDNHL FLIDVKHKNT EFTGAKIANM LEKINIVVNK
NTIPFDQEKP FVTSGIRIGT PAMTTVGFRE NDFVAVADLM DKAINHLDDE SYLSQIKQQV
LALLSKFNK
