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Details on Person UniProt:A0A0P0XCU3 SSIIIA
| Class:Id | ReferenceGeneProduct:9918271 |
|---|---|
| _chainChangeLog | transit peptide:1-49 for 9918271 added on Sun Nov 03 2024;chain:50-1875 for 9918271 added on Sun Nov 03 2024 |
| _displayName | UniProt:A0A0P0XCU3 SSIIIA |
| _timestamp | 2024-11-03 20:23:40 |
| chain | transit peptide:1-49 chain:50-1875 |
| checksum | 07E6DBD2B16A23F0 |
| comment | FUNCTION Involved in starch synthesis in endosperm amyloplasts (PubMed:17297616, PubMed:17586688, PubMed:21417378, PubMed:21595523, PubMed:21730357). Plays an important role in the elongation of amylopectin B chains (PubMed:17297616, PubMed:17586688, PubMed:21417378, PubMed:21595523, PubMed:21730357).CATALYTIC ACTIVITY [(1->4)-alpha-D-glucosyl](n) + ADP-alpha-D-glucose = [(1->4)-alpha-D-glucosyl](n+1) + ADP + H(+)PATHWAY Glycan biosynthesis; starch biosynthesis.SUBCELLULAR LOCATION Amyloplast or chloroplast, soluble.ALTERNATIVE PRODUCTS Expressed in the endosperm.DEVELOPMENTAL STAGE Expressed in developing caryopsis from 5 to 15 days after flowering.DISRUPTION PHENOTYPE White-core floury endosperm (PubMed:17297616, PubMed:27791174). Increased content of resistant starch (RS) (PubMed:27791174). Endosperm containing increased levels of amylose (PubMed:17297616, PubMed:21417378). Reduced content of long amylopectin chains with a degree of polymerization (DP) of 30 or greater (PubMed:17297616, PubMed:17586688). Reduced content of amylopectin chains with a DP of 6 to 8 and a DP of 16 to 20, but increased content of chains with a DP of 9 to 15 and a DP of 22 to 29 (PubMed:17297616, PubMed:17586688). Decrease in average length of amylopectin chains (PubMed:21417378).BIOTECHNOLOGY Selection of varieties with reduced SSIIIA activity may be a tool to increase resistant starch (RS) content of rice grain.SIMILARITY Belongs to the glycosyltransferase 1 family. Bacterial/plant glycogen synthase subfamily. |
| created | [InstanceEdit:9918269] Naithani, Sushma, 2024-08-14 |
| description | recommendedName: fullName evidence="13"Soluble starch synthase 3a, chloroplastic/amyloplastic ecNumber evidence="13"2.4.1.21 alternativeName: fullName evidence="12"Protein FLOURY ENDOSPERM 5 alternativeName: fullName evidence="12"Soluble starch synthase IIIa shortName evidence="12"OsSSIIIa |
| geneName | SSIIIA FLO5 SS3A SSIII-2 Os08g0191433 LOC_Os08g09230 OSJNBa0056O06.4-1 |
| identifier | A0A0P0XCU3 |
| isSequenceChanged | FALSE |
| keyword | Alternative splicing Amyloplast Chloroplast Coiled coil Glycosyltransferase Plastid Reference proteome Starch biosynthesis Transferase Transit peptide |
| modified | [InstanceEdit:9926675] Weiser, Joel, 2024-11-03 |
| name | SSIIIA |
| referenceDatabase | [ReferenceDatabase:2] UniProt |
| secondaryIdentifier | SSY3A_ORYSJ Q6Z1D6 |
| sequenceLength | 1875 |
| species | [Species:1250427] Oryza sativa subsp. japonica |
| (isoformParent) | [ReferenceIsoform:9918325] UniProt:A0A0P0XCU3-1 SSIIIA [Oryza sativa subsp. japonica] [ReferenceIsoform:9918327] UniProt:A0A0P0XCU3-2 SSIIIA [Oryza sativa subsp. japonica] |
| (referenceEntity) | [EntityWithAccessionedSequence:9918268] soluble Starch Synthase (SSIIIA/SSIII-2) [amyloplast] [Oryza sativa] |
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No pathways have been reviewed or authored by UniProt:A0A0P0XCU3 SSIIIA (9918271)
