ID A0A4Q3Y5E0_9RHOB Unreviewed; 431 AA. AC A0A4Q3Y5E0; DT 31-JUL-2019, integrated into UniProtKB/TrEMBL. DT 31-JUL-2019, sequence version 1. DT 27-NOV-2024, entry version 17. DE RecName: Full=Serine hydroxymethyltransferase {ECO:0000256|HAMAP-Rule:MF_00051}; DE Short=SHMT {ECO:0000256|HAMAP-Rule:MF_00051}; DE Short=Serine methylase {ECO:0000256|HAMAP-Rule:MF_00051}; DE EC=2.1.2.1 {ECO:0000256|HAMAP-Rule:MF_00051}; GN Name=glyA {ECO:0000256|HAMAP-Rule:MF_00051}; GN ORFNames=EU803_16070 {ECO:0000313|EMBL:RYG89669.1}; OS Loktanella sp. IMCC34160. OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales; OC Roseobacteraceae; Loktanella. OX NCBI_TaxID=2510646 {ECO:0000313|EMBL:RYG89669.1, ECO:0000313|Proteomes:UP000294096}; RN [1] {ECO:0000313|EMBL:RYG89669.1, ECO:0000313|Proteomes:UP000294096} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=IMCC34160 {ECO:0000313|EMBL:RYG89669.1, RC ECO:0000313|Proteomes:UP000294096}; RA Jang H.-J.; RT "Loktanella sp IMCC34160, Genome."; RL Submitted (FEB-2019) to the EMBL/GenBank/DDBJ databases. 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:0000256|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:0000256|HAMAP-Rule:MF_00051}; CC -!- COFACTOR: CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326; CC Evidence={ECO:0000256|ARBA:ARBA00001933, CC ECO:0000256|HAMAP-Rule:MF_00051, ECO:0000256|PIRSR:PIRSR000412-50}; CC -!- PATHWAY: Amino-acid biosynthesis; glycine biosynthesis; glycine from L- CC serine: step 1/1. {ECO:0000256|HAMAP-Rule:MF_00051}. CC -!- PATHWAY: One-carbon metabolism; tetrahydrofolate interconversion. CC {ECO:0000256|HAMAP-Rule:MF_00051}. CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738, ECO:0000256|HAMAP- CC Rule:MF_00051}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00051}. CC -!- SIMILARITY: Belongs to the SHMT family. {ECO:0000256|ARBA:ARBA00006376, CC ECO:0000256|HAMAP-Rule:MF_00051}. CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00051}. CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ CC whole genome shotgun (WGS) entry which is preliminary data. CC {ECO:0000313|EMBL:RYG89669.1}. 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; SELP01000007; RYG89669.1; -; Genomic_DNA. DR AlphaFoldDB; A0A4Q3Y5E0; -. DR OrthoDB; 9803846at2; -. DR UniPathway; UPA00193; -. DR UniPathway; UPA00288; UER01023. DR Proteomes; UP000294096; Unassembled WGS sequence. DR GO; GO:0005829; C:cytosol; IEA:TreeGrafter. DR GO; GO:0050897; F:cobalt ion binding; IEA:TreeGrafter. DR GO; GO:0004372; F:glycine hydroxymethyltransferase activity; IEA:UniProtKB-UniRule. DR GO; GO:0008168; F:methyltransferase activity; IEA:UniProtKB-KW. DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule. DR GO; GO:0070905; F:serine binding; IEA:TreeGrafter. DR GO; GO:0008270; F:zinc ion binding; IEA:TreeGrafter. DR GO; GO:0046655; P:folic acid metabolic process; IEA:TreeGrafter. DR GO; GO:0019264; P:glycine biosynthetic process from serine; IEA:UniProtKB-UniRule. DR GO; GO:0006565; P:L-serine catabolic process; IEA:TreeGrafter. DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW. DR GO; GO:0035999; P:tetrahydrofolate interconversion; IEA:UniProtKB-UniRule. DR CDD; cd00378; SHMT; 1. DR FunFam; 3.40.640.10:FF:000001; Serine hydroxymethyltransferase; 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; IPR049943; Ser_HO-MeTrfase-like. 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 {ECO:0000256|HAMAP-Rule:MF_00051}; KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00051}; KW Methyltransferase {ECO:0000313|EMBL:RYG89669.1}; KW One-carbon metabolism {ECO:0000256|ARBA:ARBA00022563, ECO:0000256|HAMAP- KW Rule:MF_00051}; KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP- KW Rule:MF_00051}; Reference proteome {ECO:0000313|Proteomes:UP000294096}; KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP- KW Rule:MF_00051}. FT DOMAIN 16..392 FT /note="Serine hydroxymethyltransferase-like" FT /evidence="ECO:0000259|Pfam:PF00464" FT BINDING 128 FT /ligand="(6S)-5,6,7,8-tetrahydrofolate" FT /ligand_id="ChEBI:CHEBI:57453" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00051" FT BINDING 132..134 FT /ligand="(6S)-5,6,7,8-tetrahydrofolate" FT /ligand_id="ChEBI:CHEBI:57453" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00051" FT BINDING 252 FT /ligand="(6S)-5,6,7,8-tetrahydrofolate" FT /ligand_id="ChEBI:CHEBI:57453" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00051" FT SITE 236 FT /note="Plays an important role in substrate specificity" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00051" FT MOD_RES 237 FT /note="N6-(pyridoxal phosphate)lysine" FT /evidence="ECO:0000256|HAMAP-Rule:MF_00051, FT ECO:0000256|PIRSR:PIRSR000412-50" SQ SEQUENCE 431 AA; 46083 MW; BAD35E7E607BFBB6 CRC64; MNATTRDSGF FTESLSSRDP ELFGAITGEL GRQRHEIELI ASENIVSAAV MEAQGSVMTN KYAEGYPGRR YYGGCEFVDV AENLAIERSC QLFDCAFANV QPNSGSQANQ GVFQALLTPG DTILGMSLDA GGHLTHGAKP NQSGKWFNAV QYGVRQQDSQ IDYDQIAALA TEHQPKMIIA GGSAIPRIID FARMREIADS VGAYLMVDMA HFAGLVAAGL YPSPFPHAHV ATTTTHKTLR GPRGGAIFTN DEDIAKKVNS AIFPGIQGGP LMHVIAAKAV AFGEALRPEF KLYQEQVVKN AKALADQLMK GGLDIVTGGT DSHVMLVDLR PKGVKGNATE KALGRANITT NKNGIPFDPE KPTVTSGIRL GTPAGTTRGF TEAEFRQIAD WIVEVVDGLA ANGEEGNAEI EAKVKAEVEA LCETFPLYPN L //