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P0C586

- SSY23_ORYSI

UniProt

P0C586 - SSY23_ORYSI

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Protein

Soluble starch synthase 2-3, chloroplastic/amyloplastic

Gene
SSII-3, ALK
Organism
Oryza sativa subsp. indica (Rice)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at protein leveli

Functioni

Plays an important role during endosperm starch synthesis. Determines the type of amylopectin structure of starch grain. Synthesizes long B1 amylopectin chains by elongating short A and B1 chains, independently of the other soluble starch synthases. Barely active in japonica subspecies.2 Publications

Catalytic activityi

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

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei333 – 3331ADP-glucose By similarity

GO - Molecular functioni

  1. 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

UniPathwayiUPA00152.

Protein family/group databases

CAZyiGT5. Glycosyltransferase Family 5.

Names & Taxonomyi

Protein namesi
Recommended name:
Soluble starch synthase 2-3, chloroplastic/amyloplastic (EC:2.4.1.21)
Alternative name(s):
Soluble starch synthase II-3
Starch synthase IIa
Gene namesi
Name:SSII-3
Synonyms:ALK
OrganismiOryza sativa subsp. indica (Rice)
Taxonomic identifieri39946 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaeBEP cladeEhrhartoideaeOryzeaeOryza

Organism-specific databases

GrameneiP0C586.

Subcellular locationi

Plastidamyloplast. Plastidchloroplast
Note: Amyloplast or chloroplast, granule-bound and soluble.2 Publications

GO - Cellular componenti

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

Keywords - Cellular componenti

Amyloplast, Chloroplast, Plastid

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Mutagenesisi88 – 881E → D: Reduced activity; when associated with F-781. Loss of activity; when associated with M-737. Loss of activity; when associated with S-604 and F-781. 1 Publication
Mutagenesisi604 – 6041G → S: Loss of activity; when associated with M-737 and/or F-781. 1 Publication
Mutagenesisi737 – 7371V → M: Loss of activity. Loss of activity; when associated with D-88 and/or S-604 and/or F-781. 1 Publication
Mutagenesisi781 – 7811L → F: Reduced activity. Reduced activity; when associated with D-88. Loss of activity; when associated with S-604 and/or M-737. 1 Publication

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transit peptidei1 – 1616Chloroplast Reviewed predictionAdd
BLAST
Chaini17 – 810794Soluble starch synthase 2-3, chloroplastic/amyloplasticUniRule annotationPRO_0000295651Add
BLAST

Expressioni

Tissue specificityi

Expressed most exclusively in endosperm.2 Publications

Developmental stagei

Expressed in developing caryopsis at 5 to 15 days after flowering. Expressed exclusively in the endosperm at 5 to 10 days after flowering.1 Publication

Structurei

3D structure databases

ProteinModelPortaliP0C586.

Family & Domainsi

Compositional bias

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Compositional biasi53 – 608Poly-ProUniRule annotation
Compositional biasi178 – 23558Pro-richUniRule annotationAdd
BLAST
Compositional biasi278 – 30932Asp-richUniRule annotationAdd
BLAST

Sequence similaritiesi

Keywords - Domaini

Transit peptide

Phylogenomic databases

eggNOGiCOG0297.
HOGENOMiHOG000294940.

Family and domain databases

HAMAPiMF_00484. Glycogen_synth.
InterProiIPR001296. Glyco_trans_1.
IPR011835. Glycogen/starch_synth.
IPR013534. Starch_synth_cat_dom.
[Graphical view]
PfamiPF08323. Glyco_transf_5. 1 hit.
PF00534. Glycos_transf_1. 1 hit.
[Graphical view]
TIGRFAMsiTIGR02095. glgA. 1 hit.

Sequencei

Sequence statusi: Complete.

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

P0C586-1 [UniParc]FASTAAdd to Basket

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MSSAVVASST TFLVALASSA SRGGPRRGRV VGVAAPPALL YDGRAGRLAL    50
RAPPPPRPRP RRRDAGVVRR ADDGENEAAV ERAGEDDEEE EEFSSGAWQP 100
PRSRRGGVGK VLKRRGTVPP VGRYGSGGDA ARVRGAAAPA PAPTQDAASS 150
KNGALLSGRD DDTPASRNGS VVTGADKPAA ATPPVTITKL PAPDSPVILP 200
SVDKPQPEFV IPDATAPAPP PPGSNPRSSA PLPKPDNSEF AEDKSAKVVE 250
SAPKPKATRS SPIPAVEEET WDFKKYFDLN EPDAAEDGDD DDDWADSDAS 300
DSEIDQDDDS GPLAGENVMN VIVVAAECSP WCKTGGLGDV AGALPKALAR 350
RGHRVMVVVP RYGDYAEAQD VGIRKYYKAA GQDLEVKYFH AFIDGVDFVF 400
IDAPLFRHRQ DDIYGGNRQE IMKRMILFCK AAVEVPWHVP CGGVPYGDGN 450
LVFLANDWHT ALLPVYLKAY YRDNGMMQYT RSVLVIHNIA YQGRGPVDEF 500
PYMELPEHYL DHFKLYDPVG GEHANIFGAG LKMADRVVTV SPGYLWELKT 550
TEGGWGLHDI IRENDWKMNG IVNGIDYREW NPEVDVHLQS DGYANYTVAS 600
LDSGKPRCKA ALQRELGLEV RDDVPLIGFI GRLDGQKGVD IIGDAMPWIA 650
GQDVQLVLLG SGRRDLEVML QRFEAQHNSK VRGWVGFSVK MAHRITAGAD 700
VLVMPSRFEP CGLNQLYAMA YGTVPVVHAV GGLRDTVSAF DPFEDTGLGW 750
TFDRAEPHKL IEALGHCLET YRKYKESWRG LQVRGMSQDL SWDHAAELYE 800
EVLVKAKYQW 810
Length:810
Mass (Da):88,327
Last modified:July 24, 2007 - v1
Checksum:iA08DE310DC90B319
GO

Sequence cautioni

The sequence AAQ99280.1 differs from that shown. Reason: Erroneous gene model prediction.

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AY423717 Genomic DNA. Translation: AAQ99280.1. Sequence problems.
AB115917 mRNA. Translation: BAD90593.1.
AB115918 mRNA. Translation: BAD90594.1.
UniGeneiOs.5738.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AY423717 Genomic DNA. Translation: AAQ99280.1 . Sequence problems.
AB115917 mRNA. Translation: BAD90593.1 .
AB115918 mRNA. Translation: BAD90594.1 .
UniGenei Os.5738.

3D structure databases

ProteinModelPortali P0C586.
ModBasei Search...
MobiDBi Search...

Protein family/group databases

CAZyi GT5. Glycosyltransferase Family 5.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Organism-specific databases

Gramenei P0C586.

Phylogenomic databases

eggNOGi COG0297.
HOGENOMi HOG000294940.

Enzyme and pathway databases

UniPathwayi UPA00152 .

Family and domain databases

HAMAPi MF_00484. Glycogen_synth.
InterProi IPR001296. Glyco_trans_1.
IPR011835. Glycogen/starch_synth.
IPR013534. Starch_synth_cat_dom.
[Graphical view ]
Pfami PF08323. Glyco_transf_5. 1 hit.
PF00534. Glycos_transf_1. 1 hit.
[Graphical view ]
TIGRFAMsi TIGR02095. glgA. 1 hit.
ProtoNeti Search...

Publicationsi

  1. "Map-based cloning of the ALK gene, which controls the gelatinization temperature of rice."
    Gao Z., Zeng D., Cui X., Zhou Y., Yan M., Huang D., Li J., Qian Q.
    Sci. China, Ser. C, Life Sci. 46:661-668(2003)
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: cv. Shuangke Zao.
  2. "Essential amino acids of starch synthase IIa differentiate amylopectin structure and starch quality between japonica and indica rice varieties."
    Nakamura Y., Francisco P.B. Jr., Hosaka Y., Sato A., Sawada T., Kubo A., Fujita N.
    Plant Mol. Biol. 58:213-227(2005) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, MUTAGENESIS OF GLU-88; GLY-604; VAL-737 AND LEU-781.
    Strain: cv. IR36 and cv. Kasalath.
  3. "Molecular cloning and expression analysis of three genes encoding starch synthase II in rice."
    Jiang H.W., Dian W.M., Liu F., Wu P.
    Planta 218:1062-1070(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: PROTEIN SEQUENCE OF 71-78, FUNCTION, SUBCELLULAR LOCATION, TISSUE SPECIFICITY, DEVELOPMENTAL STAGE.
  4. "A comprehensive expression analysis of the starch synthase gene family in rice (Oryza sativa L.)."
    Hirose T., Terao T.
    Planta 220:9-16(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: SUBCELLULAR LOCATION, TISSUE SPECIFICITY, NOMENCLATURE.

Entry informationi

Entry nameiSSY23_ORYSI
AccessioniPrimary (citable) accession number: P0C586
Secondary accession number(s): Q5DWW9
, Q5DWX1, Q67X47, Q6TDS3, Q944W5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 24, 2007
Last sequence update: July 24, 2007
Last modified: April 16, 2014
This is version 35 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Miscellaneous

Increased activity due to variations in subspecies indica is associated with the synthesis of the L-type amylopectin, which contains much lower proportion of short amylopectin chains than the S-type amylopectin found in most japonica varieties. The difference in amylopectin chain composition explains why starch from japonica subspecies has a lower gelatinisation temperature than starch from indica subspecies.

Keywords - Technical termi

Direct protein sequencing

Documents

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

External Data

Dasty 3

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