ID   GLYA_MYCS2              Reviewed;         490 AA.
AC   A0R2V7; I7FJP8;
DT   10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 1.
DT   03-AUG-2022, entry version 106.
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};
GN   OrderedLocusNames=MSMEG_5249, MSMEI_5111;
OS   Mycolicibacterium smegmatis (strain ATCC 700084 / mc(2)155) (Mycobacterium
OS   smegmatis).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycolicibacterium.
OX   NCBI_TaxID=246196;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700084 / mc(2)155;
RA   Fleischmann R.D., Dodson R.J., Haft D.H., Merkel J.S., Nelson W.C.,
RA   Fraser C.M.;
RL   Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700084 / mc(2)155;
RX   PubMed=17295914; DOI=10.1186/gb-2007-8-2-r20;
RA   Deshayes C., Perrodou E., Gallien S., Euphrasie D., Schaeffer C.,
RA   Van-Dorsselaer A., Poch O., Lecompte O., Reyrat J.-M.;
RT   "Interrupted coding sequences in Mycobacterium smegmatis: authentic
RT   mutations or sequencing errors?";
RL   Genome Biol. 8:R20.1-R20.9(2007).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700084 / mc(2)155;
RX   PubMed=18955433; DOI=10.1101/gr.081901.108;
RA   Gallien S., Perrodou E., Carapito C., Deshayes C., Reyrat J.-M.,
RA   Van Dorsselaer A., Poch O., Schaeffer C., Lecompte O.;
RT   "Ortho-proteogenomics: multiple proteomes investigation through orthology
RT   and a new MS-based protocol.";
RL   Genome Res. 19:128-135(2009).
RN   [4]
RP   PUPYLATION AT LYS-362, AND IDENTIFICATION BY MASS SPECTROMETRY.
RX   PubMed=20094657; DOI=10.1039/b916104j;
RA   Watrous J., Burns K., Liu W.T., Patel A., Hook V., Bafna V.,
RA   Barry C.E. III, Bark S., Dorrestein P.C.;
RT   "Expansion of the mycobacterial 'PUPylome'.";
RL   Mol. Biosyst. 6:376-385(2010).
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; CP000480; ABK71001.1; -; Genomic_DNA.
DR   EMBL; CP001663; AFP41555.1; -; Genomic_DNA.
DR   RefSeq; WP_011730415.1; NZ_SIJM01000014.1.
DR   RefSeq; YP_889495.1; NC_008596.1.
DR   AlphaFoldDB; A0R2V7; -.
DR   SMR; A0R2V7; -.
DR   STRING; 246196.MSMEI_5111; -.
DR   EnsemblBacteria; ABK71001; ABK71001; MSMEG_5249.
DR   EnsemblBacteria; AFP41555; AFP41555; MSMEI_5111.
DR   GeneID; 66736563; -.
DR   KEGG; msg:MSMEI_5111; -.
DR   KEGG; msm:MSMEG_5249; -.
DR   PATRIC; fig|246196.19.peg.5120; -.
DR   eggNOG; COG0112; Bacteria.
DR   OMA; VTNRNAI; -.
DR   OrthoDB; 861782at2; -.
DR   UniPathway; UPA00193; -.
DR   UniPathway; UPA00288; UER01023.
DR   Proteomes; UP000000757; Chromosome.
DR   Proteomes; UP000006158; 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; -; 2.
DR   Gene3D; 3.90.1150.10; -; 2.
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; 2.
DR   PIRSF; PIRSF000412; SHMT; 1.
DR   SUPFAM; SSF53383; SSF53383; 1.
DR   PROSITE; PS00096; SHMT; 1.
PE   1: Evidence at protein level;
KW   Amino-acid biosynthesis; Cytoplasm; Isopeptide bond; One-carbon metabolism;
KW   Pyridoxal phosphate; Reference proteome; Transferase; Ubl conjugation.
FT   CHAIN           1..490
FT                   /note="Serine hydroxymethyltransferase"
FT                   /id="PRO_0000396814"
FT   BINDING         179
FT                   /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57453"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   BINDING         183..185
FT                   /ligand="(6S)-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57453"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   SITE            290
FT                   /note="Plays an important role in substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   MOD_RES         291
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00051"
FT   CROSSLNK        362
FT                   /note="Isoglutamyl lysine isopeptide (Lys-Gln) (interchain
FT                   with Q-Cter in protein Pup)"
FT                   /evidence="ECO:0000269|PubMed:20094657"
SQ   SEQUENCE   490 AA;  51904 MW;  9750599870E36809 CRC64;
     MAADPSSNSS SVPAANGADY ADTASAAYQA ALQVIESVEP RVAAATRKEL ADQRDSLKLI
     ASENYASPAV LLTMGTWFSD KYAEGTIGHR FYAGCQNVDT VESVAAEHAR ELFGAPYAYV
     QPHSGIDANL VAFWAILATR VEAPELANFG AKHINDLSEA DWETLRNKLG NQRLLGMSLD
     AGGHLTHGFR PNISGKMFHQ RSYGTNPETG FLDYDAVAAA AREFKPLVLV AGYSAYPRRV
     NFAKMREIAD EVGATLMVDM AHFAGLVAGK VFTGDEDPVP HAHVTTTTTH KSLRGPRGGM
     VLATEEYAPA VDKGCPMVLG GPLSHVMAAK AVALAEARQP AFQQYAQQVA DNAQALADGF
     VKRDAGLVTG GTDNHIVLLD VTSFGLTGRQ AESALLDAGI VTNRNSIPAD PNGAWYTSGV
     RLGTPALTSR GFGADDFDRV AELIVEVLAN TQPEGTSKAK YKLADGTAER VHAASSELLS
     ANPLYPGLTL