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P93568 (SSY1_SOLTU) Reviewed, UniProtKB/Swiss-Prot

Last modified June 11, 2014. Version 70. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Soluble starch synthase 1, chloroplastic/amyloplastic

EC=2.4.1.21
Alternative name(s):
Soluble starch synthase I
Short name=SS I
OrganismSolanum tuberosum (Potato) [Reference proteome]
Taxonomic identifier4113 [NCBI]
Taxonomic lineageEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsSolanalesSolanaceaeSolanoideaeSolaneaeSolanum

Protein attributes

Sequence length641 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at transcript level

General annotation (Comments)

Function

Plays a minor role in starch synthesis in storage organs (tubers), but may contribute to the deposition of transient starch in chloroplasts of leaves. HAMAP-Rule MF_00484

Catalytic activity

ADP-glucose + (1,4-alpha-D-glucosyl)(n) = ADP + (1,4-alpha-D-glucosyl)(n+1). HAMAP-Rule MF_00484

Pathway

Glycan biosynthesis; starch biosynthesis. HAMAP-Rule MF_00484

Subcellular location

Plastidchloroplast. Plastidamyloplast. Note: Amyloplast or chloroplast, soluble. HAMAP-Rule MF_00484

Tissue specificity

High expression in leaves and very low in tubers.

Induction

Constant expression in light and darkness. HAMAP-Rule MF_00484

Sequence similarities

Belongs to the glycosyltransferase 1 family. Bacterial/plant glycogen synthase subfamily.

Ontologies

Keywords
   Biological processStarch biosynthesis
   Cellular componentAmyloplast
Chloroplast
Plastid
   DomainTransit peptide
   Molecular functionGlycosyltransferase
Transferase
   Technical termComplete proteome
Reference proteome
Gene Ontology (GO)
   Biological_processamylopectin biosynthetic process

Inferred from electronic annotation. Source: EnsemblPlants/Gramene

starch biosynthetic process

Inferred from electronic annotation. Source: UniProtKB-UniPathway

   Cellular_componentamyloplast

Inferred from electronic annotation. Source: UniProtKB-SubCell

chloroplast stroma

Inferred from electronic annotation. Source: EnsemblPlants/Gramene

   Molecular_functionstarch synthase activity

Inferred from electronic annotation. Source: UniProtKB-EC

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Transit peptide1 – ?Chloroplast Potential
Chain? – 641Soluble starch synthase 1, chloroplastic/amyloplastic HAMAP-Rule MF_00484PRO_0000011142

Sites

Binding site1451ADP-glucose By similarity

Sequences

Sequence LengthMass (Da)Tools
P93568 [UniParc].

Last modified May 1, 1997. Version 1.
Checksum: 30F8B0546CEFB74C

FASTA64170,608
        10         20         30         40         50         60 
MGSLQTPTNL SNKSCLCVSG RVVKGLRVER QVGLGFSWLL KGRRNRKVQS LCVTSSVSDG 

        70         80         90        100        110        120 
SSIAENKNVS EGLLLGAERD GSGSVVGFQL IPHSVAGDAT MVESHDIVAN DRDDLSEDTE 

       130        140        150        160        170        180 
EMEETPIKLT FNIIFVTAEA APYSKTGGLG DVCGSLPMAL AARGHRVMVV SPRYLNGGPS 

       190        200        210        220        230        240 
DEKYANAVDL DVRATVHCFG DAQEVAFYHE YRAGVDWVFV DHSSYCRPGT PYGDIYGAFG 

       250        260        270        280        290        300 
DNQFRFTLLS HAACEAPLVL PLGGFTYGEK CLFLANDWHA ALVPLLLAAK YRPYGVYKDA 

       310        320        330        340        350        360 
RSIVAIHNIA HQGVEPAVTY NNLGLPPQWY GAVEWIFPTW ARAHALDTGE TVNVLKGAIA 

       370        380        390        400        410        420 
VADRILTVSQ GYSWEITTPE GGYGLHELLS SRQSVLNGIT NGIDVNDWNP STDEHIASHY 

       430        440        450        460        470        480 
SINDLSGKVQ CKTDLQKELG LPIRPDCPLI GFIGRLDYQK GVDIILSAIP ELMQNDVQVV 

       490        500        510        520        530        540 
MLGSGEKQYE DWMRHTENLF KDKFRAWVGF NVPVSHRITA GCDILLMPSR FEPCGLNQLY 

       550        560        570        580        590        600 
AMRYGTIPIV HSTGGLRDTV KDFNPYAQEG IGEGTGWTFS PLTSEKLLDT LKLAIGTYTE 

       610        620        630        640 
HKSSWEGLMR RGMGRDYSWE NAAIQYEQVF TWAFIDPPYV R 

« Hide

References

[1]"Cloning and functional analysis of a cDNA encoding a starch synthase from potato (Solanum tuberosum L.) that is predominantly expressed in leaf tissue."
Kossmann J., Abel G.J.W., Springer F., Lloyd J.R., Willmitzer L.
Planta 208:503-511(1999) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
Strain: cv. Desiree.
Tissue: Leaf.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
Y10416 mRNA. Translation: CAA71442.1.
PIRT07668.
RefSeqNP_001275074.1. NM_001288145.1.
UniGeneStu.202.

3D structure databases

ProteinModelPortalP93568.
ModBaseSearch...
MobiDBSearch...

Protein family/group databases

CAZyGT5. Glycosyltransferase Family 5.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

GeneID102600045.
KEGGsot:102600045.

Phylogenomic databases

KOK00703.

Enzyme and pathway databases

UniPathwayUPA00152.

Family and domain databases

HAMAPMF_00484. Glycogen_synth.
InterProIPR001296. Glyco_trans_1.
IPR011835. Glycogen/starch_synth.
IPR013534. Starch_synth_cat_dom.
[Graphical view]
PfamPF08323. Glyco_transf_5. 1 hit.
PF00534. Glycos_transf_1. 1 hit.
[Graphical view]
TIGRFAMsTIGR02095. glgA. 1 hit.
ProtoNetSearch...

Entry information

Entry nameSSY1_SOLTU
AccessionPrimary (citable) accession number: P93568
Entry history
Integrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: May 1, 1997
Last modified: June 11, 2014
This is version 70 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways