GLYA_ACIBT
ID GLYA_ACIBT Reviewed; 417 AA.
AC A3M736;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 02-SEP-2008, sequence version 2.
DT 03-AUG-2022, 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}; OrderedLocusNames=A1S_2307;
OS Acinetobacter baumannii (strain ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC
OS KC755 / 5377).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC Acinetobacter; Acinetobacter calcoaceticus/baumannii complex.
OX NCBI_TaxID=400667;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC KC755 / 5377;
RX PubMed=17344419; DOI=10.1101/gad.1510307;
RA Smith M.G., Gianoulis T.A., Pukatzki S., Mekalanos J.J., Ornston L.N.,
RA Gerstein M., Snyder M.;
RT "New insights into Acinetobacter baumannii pathogenesis revealed by high-
RT density pyrosequencing and transposon mutagenesis.";
RL Genes Dev. 21:601-614(2007).
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; CP000521; ABO12730.2; -; Genomic_DNA.
DR RefSeq; WP_000457893.1; NZ_CP053098.1.
DR AlphaFoldDB; A3M736; -.
DR SMR; A3M736; -.
DR GeneID; 66396562; -.
DR KEGG; acb:A1S_2307; -.
DR HOGENOM; CLU_022477_2_1_6; -.
DR UniPathway; UPA00193; -.
DR UniPathway; UPA00288; UER01023.
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..417
FT /note="Serine hydroxymethyltransferase"
FT /id="PRO_1000091508"
FT BINDING 120
FT /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT /ligand_id="ChEBI:CHEBI:57453"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT BINDING 124..126
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 228
FT /note="Plays an important role in substrate specificity"
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"
SQ SEQUENCE 417 AA; 44995 MW; C6D7ACE5AEFF75B8 CRC64;
MFANISISEF DPELAQAIAS EDERQEAHIE LIASENYCSP AVMEAQGSKL TNKYAEGYPG
KRYYGGCEFV DVIEQMAIDR AKELFGADYA NVQPHAGSQA NSAVYLALLN PGDTVLGMSL
AHGGHLTHGA KVSFSGKTYN AVQYGLNAET GEIDYEEVER LALEHKPRMI VAGFSAYSRV
VDWQRFRDIA DKVGAYLFVD MAHVAGLVAA GVYPNPVQIA DVTTTTTHKT LRGPRSGLIL
AKANEEIEKK LQSAVFPGNQ GGPLMHAIAA KAICFKEAMS DDFKAYQQQV VKNAQAMAEV
FIARGYDVVS GGTDNHLFLL SLIKQDVTGK DADAWLGAAH ITVNKNSVPN DPRSPFVTSG
IRIGTPAVTT RGFGEAEVRE LAGWIADVID SKGDEKVIAD VKAKVEAVCA KFPVYAK
