ID   GLGA_STRA1              Reviewed;         476 AA.
AC   Q3K1K2;
DT   04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=Glycogen synthase {ECO:0000255|HAMAP-Rule:MF_00484};
DE            EC=2.4.1.21 {ECO:0000255|HAMAP-Rule:MF_00484};
DE   AltName: Full=Starch [bacterial glycogen] synthase {ECO:0000255|HAMAP-Rule:MF_00484};
GN   Name=glgA {ECO:0000255|HAMAP-Rule:MF_00484}; OrderedLocusNames=SAK_0979;
OS   Streptococcus agalactiae serotype Ia (strain ATCC 27591 / A909 / CDC
OS   SS700).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=205921;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27591 / A909 / CDC SS700;
RX   PubMed=16172379; DOI=10.1073/pnas.0506758102;
RA   Tettelin H., Masignani V., Cieslewicz M.J., Donati C., Medini D.,
RA   Ward N.L., Angiuoli S.V., Crabtree J., Jones A.L., Durkin A.S., DeBoy R.T.,
RA   Davidsen T.M., Mora M., Scarselli M., Margarit y Ros I., Peterson J.D.,
RA   Hauser C.R., Sundaram J.P., Nelson W.C., Madupu R., Brinkac L.M.,
RA   Dodson R.J., Rosovitz M.J., Sullivan S.A., Daugherty S.C., Haft D.H.,
RA   Selengut J., Gwinn M.L., Zhou L., Zafar N., Khouri H., Radune D.,
RA   Dimitrov G., Watkins K., O'Connor K.J., Smith S., Utterback T.R., White O.,
RA   Rubens C.E., Grandi G., Madoff L.C., Kasper D.L., Telford J.L.,
RA   Wessels M.R., Rappuoli R., Fraser C.M.;
RT   "Genome analysis of multiple pathogenic isolates of Streptococcus
RT   agalactiae: implications for the microbial 'pan-genome'.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:13950-13955(2005).
CC   -!- FUNCTION: Synthesizes alpha-1,4-glucan chains using ADP-glucose.
CC       {ECO:0000255|HAMAP-Rule:MF_00484}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=[(1->4)-alpha-D-glucosyl](n) + ADP-alpha-D-glucose = [(1->4)-
CC         alpha-D-glucosyl](n+1) + ADP + H(+); Xref=Rhea:RHEA:18189, Rhea:RHEA-
CC         COMP:9584, Rhea:RHEA-COMP:9587, ChEBI:CHEBI:15378, ChEBI:CHEBI:15444,
CC         ChEBI:CHEBI:57498, ChEBI:CHEBI:456216; EC=2.4.1.21;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00484};
CC   -!- PATHWAY: Glycan biosynthesis; glycogen biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00484}.
CC   -!- SIMILARITY: Belongs to the glycosyltransferase 1 family.
CC       Bacterial/plant glycogen synthase subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_00484}.
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DR   EMBL; CP000114; ABA45078.1; -; Genomic_DNA.
DR   RefSeq; WP_000699858.1; NC_007432.1.
DR   AlphaFoldDB; Q3K1K2; -.
DR   SMR; Q3K1K2; -.
DR   CAZy; GT5; Glycosyltransferase Family 5.
DR   KEGG; sak:SAK_0979; -.
DR   HOGENOM; CLU_009583_18_2_9; -.
DR   OMA; TWCPWYM; -.
DR   UniPathway; UPA00164; -.
DR   GO; GO:0033201; F:alpha-1,4-glucan synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0004373; F:glycogen (starch) synthase activity; IEA:InterPro.
DR   GO; GO:0009011; F:starch synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005978; P:glycogen biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00484; Glycogen_synth; 1.
DR   InterPro; IPR001296; Glyco_trans_1.
DR   InterPro; IPR011835; GS/SS.
DR   InterPro; IPR013534; Starch_synth_cat_dom.
DR   Pfam; PF08323; Glyco_transf_5; 1.
DR   Pfam; PF00534; Glycos_transf_1; 1.
DR   TIGRFAMs; TIGR02095; glgA; 1.
PE   3: Inferred from homology;
KW   Glycogen biosynthesis; Glycosyltransferase; Transferase.
FT   CHAIN           1..476
FT                   /note="Glycogen synthase"
FT                   /id="PRO_0000230266"
FT   BINDING         15
FT                   /ligand="ADP-alpha-D-glucose"
FT                   /ligand_id="ChEBI:CHEBI:57498"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00484"
SQ   SEQUENCE   476 AA;  54514 MW;  2E0F259CE9F4CF8D CRC64;
     MKIMFVAAEG APFAKTGGLG DVIGALPKSL SKKGHDVAVV MPYYDMVDQK FGDQIENLMY
     FYTDVGWRHQ YVGVKRLSQD NVTFYFIDNQ YYFYRGHVYG DWDDGERFAY FQLAALELME
     KIDFIPDVLH VHDYHTAMIP FLLKEKYHWI QAYNNIRAVF TIHNIEFQGQ FGPEMLGDLF
     GVGAERYEDG TLRWNNCLNW MKAAILYSDR VTTVSPSYAN EIKTPEFGKG LDQIMRMEAG
     KLSGIVNGID SDLLNPETDA FLPYHFSKSN LEGKIKNKLA LQENLGLPQD KNVPLIGIVS
     RLTDQKGFDI IASELDNMLQ QDIQMVILGT GYHHFEETFS YFASRYPEKL SANITFDLRL
     AQQIYAASDI FMMPSAFEPC GLSQMMAMRY GSLPLVHEVG GLKDTVVAFN QFDGSGTGFS
     FNHFSGYWLM QTLKLALEVY NDYPEAWKKL QWQAMSKDFS WDTACVAYEQ LYQQLQ