SSY1_ORYSI
ID SSY1_ORYSI Reviewed; 641 AA.
AC A2Y9M4; O24206; Q40739; Q5WA90; Q7Y044;
DT 24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT 20-MAR-2007, sequence version 1.
DT 03-AUG-2022, entry version 77.
DE RecName: Full=Soluble starch synthase 1, chloroplastic/amyloplastic;
DE EC=2.4.1.21;
DE AltName: Full=SSS 1;
DE AltName: Full=Starch synthase I;
DE Flags: Precursor;
GN ORFNames=OsI_021017;
OS Oryza sativa subsp. indica (Rice).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC Oryzoideae; Oryzeae; Oryzinae; Oryza; Oryza sativa.
OX NCBI_TaxID=39946;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RA Jiang H.W., Dian W.M., Wu P.;
RT "Oryza sativa (indica cultivar-group) putative soluble starch synthase I
RT gene.";
RL Submitted (MAY-2003) to the EMBL/GenBank/DDBJ databases.
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. 93-11;
RX PubMed=15685292; DOI=10.1371/journal.pbio.0030038;
RA Yu J., Wang J., Lin W., Li S., Li H., Zhou J., Ni P., Dong W., Hu S.,
RA Zeng C., Zhang J., Zhang Y., Li R., Xu Z., Li S., Li X., Zheng H., Cong L.,
RA Lin L., Yin J., Geng J., Li G., Shi J., Liu J., Lv H., Li J., Wang J.,
RA Deng Y., Ran L., Shi X., Wang X., Wu Q., Li C., Ren X., Wang J., Wang X.,
RA Li D., Liu D., Zhang X., Ji Z., Zhao W., Sun Y., Zhang Z., Bao J., Han Y.,
RA Dong L., Ji J., Chen P., Wu S., Liu J., Xiao Y., Bu D., Tan J., Yang L.,
RA Ye C., Zhang J., Xu J., Zhou Y., Yu Y., Zhang B., Zhuang S., Wei H.,
RA Liu B., Lei M., Yu H., Li Y., Xu H., Wei S., He X., Fang L., Zhang Z.,
RA Zhang Y., Huang X., Su Z., Tong W., Li J., Tong Z., Li S., Ye J., Wang L.,
RA Fang L., Lei T., Chen C.-S., Chen H.-C., Xu Z., Li H., Huang H., Zhang F.,
RA Xu H., Li N., Zhao C., Li S., Dong L., Huang Y., Li L., Xi Y., Qi Q.,
RA Li W., Zhang B., Hu W., Zhang Y., Tian X., Jiao Y., Liang X., Jin J.,
RA Gao L., Zheng W., Hao B., Liu S.-M., Wang W., Yuan L., Cao M.,
RA McDermott J., Samudrala R., Wang J., Wong G.K.-S., Yang H.;
RT "The genomes of Oryza sativa: a history of duplications.";
RL PLoS Biol. 3:266-281(2005).
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 -!- PATHWAY: Glycan biosynthesis; starch biosynthesis.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast. Plastid, amyloplast.
CC Note=Amyloplast or chloroplast, soluble. {ECO:0000305}.
CC -!- MISCELLANEOUS: Three forms of soluble starch synthase were purified:
CC RSS1, RSS2 and RSS3.
CC -!- SIMILARITY: Belongs to the glycosyltransferase 1 family.
CC Bacterial/plant glycogen synthase subfamily. {ECO:0000305}.
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DR EMBL; AY299404; AAP56350.1; -; mRNA.
DR EMBL; CM000131; EAY99784.1; -; Genomic_DNA.
DR AlphaFoldDB; A2Y9M4; -.
DR SMR; A2Y9M4; -.
DR STRING; 39946.A2Y9M4; -.
DR CAZy; GT5; Glycosyltransferase Family 5.
DR EnsemblPlants; BGIOSGA021860-TA; BGIOSGA021860-PA; BGIOSGA021860.
DR Gramene; BGIOSGA021860-TA; BGIOSGA021860-PA; BGIOSGA021860.
DR HOGENOM; CLU_009583_18_2_1; -.
DR OMA; TWCPWYM; -.
DR UniPathway; UPA00152; -.
DR Proteomes; UP000007015; Chromosome 6.
DR ExpressionAtlas; A2Y9M4; differential.
DR GO; GO:0009501; C:amyloplast; IEA:UniProtKB-SubCell.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
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-EC.
DR GO; GO:0010021; P:amylopectin biosynthetic process; IEA:EnsemblPlants.
DR GO; GO:0009960; P:endosperm development; IEA:EnsemblPlants.
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 2: Evidence at transcript level;
KW Amyloplast; Chloroplast; Glycosyltransferase; Plastid; Reference proteome;
KW Starch biosynthesis; Transferase; Transit peptide.
FT TRANSIT 1..113
FT /note="Chloroplast"
FT /evidence="ECO:0000250"
FT CHAIN 114..641
FT /note="Soluble starch synthase 1,
FT chloroplastic/amyloplastic"
FT /id="PRO_0000295650"
FT REGION 62..96
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 64..90
FT /note="Pro residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 147
FT /ligand="ADP-alpha-D-glucose"
FT /ligand_id="ChEBI:CHEBI:57498"
FT /evidence="ECO:0000250"
SQ SEQUENCE 641 AA; 70953 MW; FBCBB004DC252CD1 CRC64;
MATAAGMGIG AACLVAPQVR PGRRLRLQRV RRRCVAELSR DGGSAQRPLA PAPLVKQPVL
PTFLVPTSTP PAPTQSPAPA PTPPPLPDSG VGEIEPDLEG LTEDSIDKTI FVASEQESEI
MDVKEQAQAK VTRSVVFVTG EASPYAKSGG LGDVCGSLPI ALALRGHRVM VVMPRYMNGA
LNKNFANAFY TEKHIKIPCF GGEHEVTFFH EYRDSVDWVF VDHPSYHRPG NLYGDNFGAF
GDNQFRYTLL CYAACEAPLI LELGGYIYGQ KCMFVVNDWH ASLVPVLLAA KYRPYGVYRD
ARSVLVIHNL AHQGVEPAST YPDLGLPPEW YGALEWVFPE WARRHALDKG EAVNFLKGAV
VTADRIVTVS QGYSWEVTTA EGGQGLNELL SSRKSVLNGI VNGIDINDWN PSTDKFLPYH
YSVDDLSGKA KCKAELQEEL GLPIRPDVPL IGFIGRLDYQ KGIDLIKLAI PDLMRDNIQF
VMLGSGDPGF EGWMRSTESG YRDKFRGWVG FSVPVSHRIT AGCDILLMPS RFEPCGLNQL
YAMQYGTVPV VHGTGGLRDT VENFNPFAEK GEQGTGWAFS PLTIEKMLWA LRMAISTYRE
HKSSWEGLMK RGMSSDFTWD HAASQYEQIF EWAFMDQPYV M
