SSG1_MAIZE
ID SSG1_MAIZE Reviewed; 605 AA.
AC P04713;
DT 13-AUG-1987, integrated into UniProtKB/Swiss-Prot.
DT 13-AUG-1987, sequence version 1.
DT 03-AUG-2022, entry version 118.
DE RecName: Full=Granule-bound starch synthase 1, chloroplastic/amyloplastic;
DE EC=2.4.1.242;
DE AltName: Full=Granule-bound starch synthase I;
DE Short=GBSS-I;
DE Flags: Precursor;
GN Name=WAXY;
OS Zea mays (Maize).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC Panicoideae; Andropogonodae; Andropogoneae; Tripsacinae; Zea.
OX NCBI_TaxID=4577;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA Kloesgen R.B., Gierl A., Schwarz-Sommer Z., Saedler H.;
RT "Molecular analysis of the waxy locus of Zea mays.";
RL Mol. Gen. Genet. 203:237-244(1986).
CC -!- FUNCTION: Required for the synthesis of amylose in endosperm.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[(1->4)-alpha-D-glucosyl](n) + an NDP-alpha-D-glucose =
CC [(1->4)-alpha-D-glucosyl](n+1) + a ribonucleoside 5'-diphosphate +
CC H(+); Xref=Rhea:RHEA:15873, Rhea:RHEA-COMP:9584, Rhea:RHEA-COMP:9587,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:15444, ChEBI:CHEBI:57930,
CC ChEBI:CHEBI:76533; EC=2.4.1.242;
CC -!- PATHWAY: Glycan biosynthesis; starch biosynthesis.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast. Plastid, amyloplast.
CC Note=Amyloplast or chloroplast, granule-bound.
CC -!- SIMILARITY: Belongs to the glycosyltransferase 1 family.
CC Bacterial/plant glycogen synthase subfamily. {ECO:0000305}.
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DR EMBL; X03935; CAA27574.1; -; Genomic_DNA.
DR PIR; S07314; S07314.
DR AlphaFoldDB; P04713; -.
DR SMR; P04713; -.
DR STRING; 4577.GRMZM2G024993_P01; -.
DR CAZy; GT5; Glycosyltransferase Family 5.
DR PaxDb; P04713; -.
DR PRIDE; P04713; -.
DR MaizeGDB; 15806; -.
DR eggNOG; ENOG502QQX3; Eukaryota.
DR BRENDA; 2.4.1.242; 6752.
DR UniPathway; UPA00152; -.
DR Proteomes; UP000007305; Unplaced.
DR ExpressionAtlas; P04713; baseline and differential.
DR GO; GO:0009501; C:amyloplast; IEA:UniProtKB-SubCell.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR GO; GO:0102502; F:ADP-glucose-starch glucosyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0004373; F:glycogen (starch) synthase activity; IEA:InterPro.
DR GO; GO:0019252; P:starch biosynthetic process; IEA:UniProtKB-UniPathway.
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 Amyloplast; Chloroplast; Glycosyltransferase; Plastid; Reference proteome;
KW Starch biosynthesis; Transferase; Transit peptide.
FT TRANSIT 1..72
FT /note="Chloroplast"
FT CHAIN 73..605
FT /note="Granule-bound starch synthase 1,
FT chloroplastic/amyloplastic"
FT /id="PRO_0000011129"
FT BINDING 91
FT /ligand="ADP-alpha-D-glucose"
FT /ligand_id="ChEBI:CHEBI:57498"
FT /evidence="ECO:0000250"
SQ SEQUENCE 605 AA; 65967 MW; 137F15207DBFC189 CRC64;
MAALATSQLV ATRAGLGVPD ASTFRRGAAQ GLRGARASAA ADTLSMRTSA RAAPRHQQQA
RRGGRFPSLV VCASAGMNVV FVGAEMAPWS KTGGLGDVLG GLPPAMAANG HRVMVVSPRY
DQYKDAWDTS VVSEIKMGDG YETVRFFHCY KRGVDRVFVD HPLFLERVWG KTEEKIYGPV
AGTDYRDNQL RFSLLCQAAL EAPRILSLNN NPYFSGPYGE DVVFVCNDWH TGPLSCYLKS
NYQSHGIYRD AKTAFCIHNI SYQGRFAFSD YPELNLPERF KSSFDFIDGY EKPVEGRKIN
WMKAGILEAD RVLTVSPYYA EELISGIARG CELDNIMRLT GITGIVNGMD VSEWDPSRDK
YIAVKYDVST AVEAKALNKE ALQAEVGLPV DRNIPLVAFI GRLEEQKGPD VMAAAIPQLM
EMVEDVQIVL LGTGKKKFER MLMSAEEKFP GKVRAVVKFN AALAHHIMAG ADVLAVTSRF
EPCGLIQLQG MRYGTPCACA STGGLVDTII EGKTGFHMGR LSVDCNVVEP ADVKKVATTL
QRAIKVVGTP AYEEMVRNCM IQDLSWKGPA KNWENVLLSL GVAGGEPGVE GEEIAPLAKE
NVAAP
