ID   A1R450_PAEAT            Unreviewed;       430 AA.
AC   A1R450;
DT   06-FEB-2007, integrated into UniProtKB/TrEMBL.
DT   06-FEB-2007, sequence version 1.
DT   19-JAN-2022, entry version 128.
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   ECO:0000313|EMBL:ABM08285.1};
GN   OrderedLocusNames=AAur_1227 {ECO:0000313|EMBL:ABM08285.1};
OS   Paenarthrobacter aurescens (strain TC1).
OC   Bacteria; Actinobacteria; Micrococcales; Micrococcaceae; Paenarthrobacter.
OX   NCBI_TaxID=290340 {ECO:0000313|EMBL:ABM08285.1, ECO:0000313|Proteomes:UP000000637};
RN   [1] {ECO:0000313|EMBL:ABM08285.1, ECO:0000313|Proteomes:UP000000637}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TC1 {ECO:0000313|EMBL:ABM08285.1,
RC   ECO:0000313|Proteomes:UP000000637};
RX   PubMed=17194220; DOI=10.1371/journal.pgen.0020214;
RA   Mongodin E.F., Shapir N., Daugherty S.C., DeBoy R.T., Emerson J.B.,
RA   Shvartzbeyn A., Radune D., Vamathevan J., Riggs F., Grinberg V., Khouri H.,
RA   Wackett L.P., Nelson K.E., Sadowsky M.J.;
RT   "Secrets of soil survival revealed by the genome sequence of Arthrobacter
RT   aurescens TC1.";
RL   PLoS Genet. 2:2094-2106(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: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|ARBA:ARBA00004697, ECO:0000256|HAMAP-
CC       Rule:MF_00051}.
CC   -!- PATHWAY: One-carbon metabolism; tetrahydrofolate interconversion.
CC       {ECO:0000256|HAMAP-Rule:MF_00051}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-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}.
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DR   EMBL; CP000474; ABM08285.1; -; Genomic_DNA.
DR   SMR; A1R450; -.
DR   STRING; 290340.AAur_1227; -.
DR   EnsemblBacteria; ABM08285; ABM08285; AAur_1227.
DR   KEGG; aau:AAur_1227; -.
DR   eggNOG; COG0112; Bacteria.
DR   HOGENOM; CLU_022477_2_1_11; -.
DR   OMA; SHPAGLI; -.
DR   UniPathway; UPA00193; -.
DR   UniPathway; UPA00288; UER01023.
DR   Proteomes; UP000000637; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
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:0019264; P:glycine biosynthetic process from serine; IEA:UniProtKB-UniRule.
DR   GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
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 {ECO:0000256|HAMAP-Rule:MF_00051};
KW   Coiled coil {ECO:0000256|SAM:Coils};
KW   Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00051};
KW   Methyltransferase {ECO:0000313|EMBL:ABM08285.1};
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:UP000000637};
KW   Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW   Rule:MF_00051}.
FT   DOMAIN          14..395
FT                   /note="SHMT"
FT                   /evidence="ECO:0000259|Pfam:PF00464"
FT   REGION          131..133
FT                   /note="Substrate binding"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   COILED          148..168
FT                   /evidence="ECO:0000256|SAM:Coils"
FT   BINDING         41
FT                   /note="Pyridoxal phosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         61
FT                   /note="Pyridoxal phosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         63
FT                   /note="Substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         70
FT                   /note="Substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         71
FT                   /note="Pyridoxal phosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         127
FT                   /note="Substrate; via carbonyl oxygen"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         182
FT                   /note="Pyridoxal phosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         210
FT                   /note="Pyridoxal phosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         235
FT                   /note="Pyridoxal phosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         242
FT                   /note="Pyridoxal phosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         267
FT                   /note="Pyridoxal phosphate; via amide nitrogen and carbonyl
FT                   oxygen"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   BINDING         372
FT                   /note="Pyridoxal phosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051"
FT   MOD_RES         236
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00051,
FT                   ECO:0000256|PIRSR:PIRSR000412-50"
SQ   SEQUENCE   430 AA;  46054 MW;  C477D9DDA44314E8 CRC64;
     MTTTTSASVS NQSLADLDPE IAAVLNQELG RQRGTLEMIA SENFAPRAVM EAQGSVLTNK
     YAEGYPGRRY YGGCEYVDVA EQLAIDRVKE LFGAEYANVQ PHSGAQANAA ALSAMITPGD
     KILGLSLAHG GHLTHGMKLN FSGKLYNVAA YQVEEDNFRI DMDKLREQAI AEKPQVIIAG
     WSAYPRHLDF AAFRSIADEV GALLWTDMAH FAGLVAAGLH PSPVPHSDVV TSTVHKTLAG
     PRSGVILGKQ EWAKKLNSSV FPGQQGGPLM HVIAAKAVAF KIAGGEEFKE RQERVLEGAR
     IIADRLNQSD VAEAGVSVLT GGTDVHLVLV DLRNSQLDGQ QAEDLLHSVG ITVNRNAVPF
     DPRPPMVTSG LRIGTPALAT RGFGATEFTE VAEIIATALK AGSSADVESL QARVDKLAAD
     FPLYPQHEQW
//