Literature summary for 2.4.1.242 extracted from

Ahuja, G.; Jaiswal, S.; Hucl, P.; Chibbar, R.N.
Genome-specific granule-bound starch synthase I (GBSSI) influences starch biochemical and functional characteristics in near-isogenic wheat (Triticum aestivum L.) lines (2013), J. Agric. Food Chem., 61, 12129-12138.

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Application

Application	Comment	Organism
agriculture	grain composition, amylose concentration, amylopectin unit-chain length distribution, and starch granule size distribution vary with the loss of functional granule-bound starch synthase GBSSI. Amylose concentration is more severely affected in genotypes with GBSSI missing from two genomes (double nulls) than from one genome (single nulls). Unit glucan chains (DP 6-8) of amylopectin are reduced with the complete loss of GBSSI as compared to wheat starch with a full complement of GBSSI. Alleles Wx-A and Wx-B have an additive effect toward short-chain phenotype of waxy amylopectin. Loss of Wx-D isoprotein alone significantly reduces the C-type starch granules. The absence of Wx-D in combination with Wx-A or Wx-B increases the B-type and C-type starch granules but decreases the volume of A-type starch granules. The rate of in vitro starch enzymatic hydrolysis is highest in completely waxy grain meal and purified starch	Triticum aestivum

Localization

Localization	Comment	Organism	GeneOntology No.	Textmining
amyloplast	-	Triticum aestivum	9501	-
chloroplast	-	Triticum aestivum	9507	-

Organism

Organism	UniProt	Comment	Textmining
Triticum aestivum	P27736	-	-

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Release 2023.1 (January 2023)