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Q43846

- SSY3_SOLTU

UniProt

Q43846 - SSY3_SOLTU

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Protein

Soluble starch synthase 3, chloroplastic/amyloplastic

Gene

SS3

Organism
Solanum tuberosum (Potato)
Status
Reviewed - Annotation score: 3 out of 5- Experimental evidence at protein leveli

Functioni

May account for most of the soluble starch synthase activity in the tubers. Contributes only a tiny percentage of the granule-bound activity, but may also contribute to the deposition of transient starch in chloroplasts of leaves.

Catalytic activityi

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

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei794 – 7941ADP-glucoseBy similarity

GO - Molecular functioni

  1. starch binding Source: InterPro
  2. starch synthase activity Source: UniProtKB-EC

GO - Biological processi

  1. starch biosynthetic process Source: UniProtKB-UniPathway
Complete GO annotation...

Keywords - Molecular functioni

Glycosyltransferase, Transferase

Keywords - Biological processi

Starch biosynthesis

Enzyme and pathway databases

BioCyciMetaCyc:MONOMER-1884.
UniPathwayiUPA00152.

Protein family/group databases

CAZyiCBM53. Carbohydrate-Binding Module Family 53.
GT5. Glycosyltransferase Family 5.

Names & Taxonomyi

Protein namesi
Recommended name:
Soluble starch synthase 3, chloroplastic/amyloplastic (EC:2.4.1.21)
Alternative name(s):
Soluble starch synthase III
Short name:
SS III
Gene namesi
Name:SS3
Synonyms:SSIII
OrganismiSolanum tuberosum (Potato)
Taxonomic identifieri4113 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsSolanalesSolanaceaeSolanoideaeSolaneaeSolanum
ProteomesiUP000011115: Unplaced

Subcellular locationi

Plastidchloroplast By similarity. Plastidamyloplast By similarity
Note: Amyloplast or chloroplast, granule-bound and soluble.By similarity

GO - Cellular componenti

  1. amyloplast Source: UniProtKB-KW
  2. chloroplast Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Amyloplast, Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transit peptidei1 – 6060ChloroplastSequence AnalysisAdd
BLAST
Chaini61 – 12301170Soluble starch synthase 3, chloroplastic/amyloplasticPRO_0000011146Add
BLAST

Expressioni

Tissue specificityi

Tuber, sink and source leaves.

Inductioni

By sucrose under illumination.

Structurei

3D structure databases

ProteinModelPortaliQ43846.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transit peptide

Phylogenomic databases

InParanoidiQ43846.

Family and domain databases

HAMAPiMF_00484. Glycogen_synth.
InterProiIPR005085. CBM_fam25.
IPR001296. Glyco_trans_1.
IPR011835. Glycogen/starch_synth.
IPR013534. Starch_synth_cat_dom.
[Graphical view]
PfamiPF03423. CBM_25. 3 hits.
PF08323. Glyco_transf_5. 1 hit.
PF00534. Glycos_transf_1. 1 hit.
[Graphical view]
SMARTiSM01066. CBM_25. 3 hits.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

Q43846-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MDVPFPLHRS LSCTSVSNAI THLKIKPILG FVSHGTTSLS VQSSSWRKDG
60 70 80 90 100
MVTGVSFSIC ANFSGRRRRK VSTPRSQGSS PKGFVPRKPS GMSTQRKVQK
110 120 130 140 150
SNGDKESKST STSKESEISN QKTVEARVET SDDDTKGVVR DHKFLEDEDE
160 170 180 190 200
INGSTKSISM SPVRVSSQFV ESEETGGDDK DAVKLNKSKR SEESGFIIDS
210 220 230 240 250
VIREQSGSQG ETNASSKGSH AVGTKLYEIL QVDVEPQQLK ENNAGNVEYK
260 270 280 290 300
GPVASKLLEI TKASDVEHTE SNEIDDLDTN SFFKSDLIEE DEPLAAGTVE
310 320 330 340 350
TGDSSLNLRL EMEANLRRQA IERLAEENLL QGIRLFCFPE VVKPDEDVEI
360 370 380 390 400
FLNRGLSTLK NESDVLIMGA FNEWRYRSFT TRLTETHLNG DWWSCKIHVP
410 420 430 440 450
KEAYRADFVF FNGQDVYDNN DGNDFSITVK GGMQIIDFEN FLLEEKWREQ
460 470 480 490 500
EKLAKEQAER ERLAEEQRRI EAEKAEIEAD RAQAKEEAAK KKKVLRELMV
510 520 530 540 550
KATKTRDITW YIEPSEFKCE DKVRLYYNKS SGPLSHAKDL WIHGGYNNWK
560 570 580 590 600
DGLSIVKKLV KSERIDGDWW YTEVVIPDQA LFLDWVFADG PPKHAIAYDN
610 620 630 640 650
NHRQDFHAIV PNHIPEELYW VEEEHQIFKT LQEERRLREA AMRAKVEKTA
660 670 680 690 700
LLKTETKERT MKSFLLSQKH VVYTEPLDIQ AGSSVTVYYN PANTVLNGKP
710 720 730 740 750
EIWFRCSFNR WTHRLGPLPP QKMSPAENGT HVRATVKVPL DAYMMDFVFS
760 770 780 790 800
EREDGGIFDN KSGMDYHIPV FGGVAKEPPM HIVHIAVEMA PIAKVGGLGD
810 820 830 840 850
VVTSLSRAVQ DLNHNVDIIL PKYDCLKMNN VKDFRFHKNY FWGGTEIKVW
860 870 880 890 900
FGKVEGLSVY FLEPQNGLFS KGCVYGCSND GERFGFFCHA ALEFLLQGGF
910 920 930 940 950
SPDIIHCHDW SSAPVAWLFK EQYTHYGLSK SRIVFTIHNL EFGADLIGRA
960 970 980 990 1000
MTNADKATTV SPTYSQEVSG NPVIAPHLHK FHGIVNGIDP DIWDPLNDKF
1010 1020 1030 1040 1050
IPIPYTSENV VEGKTAAKEA LQRKLGLKQA DLPLVGIITR LTHQKGIHLI
1060 1070 1080 1090 1100
KHAIWRTLER NGQVVLLGSA PDPRVQNNFV NLANQLHSKY NDRARLCLTY
1110 1120 1130 1140 1150
DEPLSHLIYA GADFILVPSI FEPCGLTQLT AMRYGSIPVV RKTGGLYDTV
1160 1170 1180 1190 1200
FDVDHDKERA QQCGLEPNGF SFDGADAGGV DYALNRALSA WYDGRDWFNS
1210 1220 1230
LCKQVMEQDW SWNRPALDYL ELYHAARKLE
Length:1,230
Mass (Da):139,111
Last modified:November 1, 1996 - v1
Checksum:i3D95524F3DD9349E
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti10 – 101S → P in CAA64173. (PubMed:9011082)Curated
Sequence conflicti28 – 281I → F in CAA64173. (PubMed:9011082)Curated
Sequence conflicti58 – 592SI → PF in CAA64173. (PubMed:9011082)Curated
Sequence conflicti63 – 631F → L in CAA64173. (PubMed:9011082)Curated
Sequence conflicti74 – 741P → T in CAA64173. (PubMed:9011082)Curated
Sequence conflicti108 – 1081K → Q in CAA64173. (PubMed:9011082)Curated
Sequence conflicti137 – 1371G → V in CAA64173. (PubMed:9011082)Curated
Sequence conflicti195 – 1951G → D(PubMed:9011082)Curated
Sequence conflicti197 – 1971I → L(PubMed:9011082)Curated
Sequence conflicti1078 – 10781N → D in CAA64173. (PubMed:9011082)Curated

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X95759 mRNA. Translation: CAA65065.1.
X94400 mRNA. Translation: CAA64173.1.
PIRiT07663.
UniGeneiStu.198.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X95759 mRNA. Translation: CAA65065.1 .
X94400 mRNA. Translation: CAA64173.1 .
PIRi T07663.
UniGenei Stu.198.

3D structure databases

ProteinModelPortali Q43846.
ModBasei Search...
MobiDBi Search...

Protein family/group databases

CAZyi CBM53. Carbohydrate-Binding Module Family 53.
GT5. Glycosyltransferase Family 5.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Phylogenomic databases

InParanoidi Q43846.

Enzyme and pathway databases

UniPathwayi UPA00152 .
BioCyci MetaCyc:MONOMER-1884.

Family and domain databases

HAMAPi MF_00484. Glycogen_synth.
InterProi IPR005085. CBM_fam25.
IPR001296. Glyco_trans_1.
IPR011835. Glycogen/starch_synth.
IPR013534. Starch_synth_cat_dom.
[Graphical view ]
Pfami PF03423. CBM_25. 3 hits.
PF08323. Glyco_transf_5. 1 hit.
PF00534. Glycos_transf_1. 1 hit.
[Graphical view ]
SMARTi SM01066. CBM_25. 3 hits.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Identification of the major starch synthase in the soluble fraction of potato tubers."
    Marshall J., Sidebottom C., Debet M., Martin C., Smith A.M., Edwards A.
    Plant Cell 8:1121-1135(1996) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA], PROTEIN SEQUENCE OF 767-773 AND 1000-1014.
    Strain: cv. Desiree.
    Tissue: Tuber.
  2. "Cloning and functional analysis of a cDNA encoding a novel 139 kDa starch synthase from potato (Solanum tuberosum L.)."
    Abel G.J.W., Springer F., Willmitzer L., Kossmann J.
    Plant J. 10:981-991(1996) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
    Strain: cv. Desiree.

Entry informationi

Entry nameiSSY3_SOLTU
AccessioniPrimary (citable) accession number: Q43846
Secondary accession number(s): O04842
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 1, 1996
Last modified: October 29, 2014
This is version 83 of the entry and version 1 of the sequence. [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

External Data

Dasty 3