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Protein

Granule-bound starch synthase 2, chloroplastic/amyloplastic

Gene

SS2

Organism
Solanum tuberosum (Potato)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Accounts for only 10 to 15% of the total soluble starch synthase activity in tubers.1 Publication

Miscellaneous

May be the main starch synthase responsible for the incorporation of phosphorylated precursors into growing alpha-1,4-glucans.

Catalytic activityi

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

Pathwayi: starch biosynthesis

This protein is involved in the pathway starch biosynthesis, which is part of Glycan biosynthesis.
View all proteins of this organism that are known to be involved in the pathway starch biosynthesis and in Glycan biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei290ADP-glucoseBy similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionGlycosyltransferase, Transferase
Biological processStarch biosynthesis

Enzyme and pathway databases

SABIO-RKiQ43847
UniPathwayiUPA00152

Protein family/group databases

CAZyiGT5 Glycosyltransferase Family 5

Names & Taxonomyi

Protein namesi
Recommended name:
Granule-bound starch synthase 2, chloroplastic/amyloplastic (EC:2.4.1.21)
Alternative name(s):
Granule-bound starch synthase II
Short name:
GBSS-II
Short name:
SS II
Gene namesi
Name:SS2
Synonyms:SSII
OrganismiSolanum tuberosum (Potato)
Taxonomic identifieri4113 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsSolanalesSolanaceaeSolanoideaeSolaneaeSolanum
Proteomesi
  • UP000011115 Componenti: Unassembled WGS sequence

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Amyloplast, Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 45Chloroplast1 PublicationAdd BLAST45
ChainiPRO_000001114546 – 767Granule-bound starch synthase 2, chloroplastic/amyloplasticAdd BLAST722

Expressioni

Inductioni

Constant expression in light and darkness.

Gene expression databases

ExpressionAtlasiQ43847 baseline and differential

Interactioni

Protein-protein interaction databases

STRINGi4113.PGSC0003DMT400003356

Structurei

3D structure databases

ProteinModelPortaliQ43847
SMRiQ43847
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transit peptide

Phylogenomic databases

eggNOGiENOG410IDXT Eukaryota
COG0297 LUCA
InParanoidiQ43847
KOiK00703
OMAiCAPVIKA
OrthoDBiEOG093602TG

Family and domain databases

HAMAPiMF_00484 Glycogen_synth, 1 hit
InterProiView protein in InterPro
IPR001296 Glyco_trans_1
IPR011835 GS/SS
IPR013534 Starch_synth_cat_dom
PfamiView protein in Pfam
PF08323 Glyco_transf_5, 1 hit
PF00534 Glycos_transf_1, 1 hit
TIGRFAMsiTIGR02095 glgA, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q43847-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MENSILLHSG NQFHPNLPLL ALRPKKLSLI HGSSREQMWR IKRVKATGEN
60 70 80 90 100
SGEAASADES NDALQVTIEK SKKVLAMQQD LLQQIAERRK VVSSIKSSLA
110 120 130 140 150
NAKGTYDGGS GSLSDVDIPD VDKDYNVTVP STAATPITDV DKNTPPAISQ
160 170 180 190 200
DFVESKREIK RDLADERAPP LSRSSITASS QISSTVSSKR TLNVPPETPK
210 220 230 240 250
SSQETLLDVN SRKSLVDVPG KKIQSYMPSL RKESSASHVE QRNENLEGSS
260 270 280 290 300
AEANEETEDP VNIDEKPPPL AGTNVMNIIL VASECAPWSK TGGLGDVAGA
310 320 330 340 350
LPKALARRGH RVMVVAPRYD NYPEPQDSGV RKIYKVDGQD VEVTYFQAFI
360 370 380 390 400
DGVDFVFIDS HMFRHIGNNI YGGNRVDILK RMVLFCKAAI EVPWHVPCGG
410 420 430 440 450
VCYGDGNLVF IANDWHTALL PVYLKAYYRD NGIMNYTRSV LVIHNIAHQG
460 470 480 490 500
RGPLEDFSYV DLPPHYMDPF KLYDPVGGEH FNIFAAGLKT ADRVVTVSHG
510 520 530 540 550
YSWELKTSQG GWGLHQIINE NDWKLQGIVN GIDTKEWNPE LDVHLQSDGY
560 570 580 590 600
MNYSLDTLQT GKPQCKAALQ KELGLPVRDD VPLIGFIGRL DPQKGVDLIA
610 620 630 640 650
EAVPWMMGQD VQLVMLGTGR RDLEQMLRQF ECQHNDKIRG WVGFSVKTSH
660 670 680 690 700
RITAGADILL MPSRFEPCGL NQLYAMKYGT IPVVHAVGGL RDTVQPFDPF
710 720 730 740 750
NESGLGWTFS RAEASQLIHA LGNCLLTYRE YKKSWEGIQT RCMTQDLSWD
760
NAAQNYEEVL IAAKYQW
Length:767
Mass (Da):85,222
Last modified:January 4, 2005 - v3
Checksum:i7C6405995FEC996B
GO

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural varianti51S → D1 Publication1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X87988 mRNA Translation: CAA61241.2
PIRiT07667
RefSeqiNP_001274977.1, NM_001288048.1
UniGeneiStu.662

Genome annotation databases

EnsemblPlantsiPGSC0003DMT400003356; PGSC0003DMT400003356; PGSC0003DMG400001328
GeneIDi102583115
GrameneiPGSC0003DMT400003356; PGSC0003DMT400003356; PGSC0003DMG400001328
KEGGisot:102583115

Keywords - Coding sequence diversityi

Polymorphism

Similar proteinsi

Entry informationi

Entry nameiSSY2_SOLTU
AccessioniPrimary (citable) accession number: Q43847
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: January 4, 2005
Last modified: May 23, 2018
This is version 93 of the entry and version 3 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

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