SBDCP1

• Symbol: SBDCP1
• MSU: LOC_Os01g63810
• RAPdb: Os01g0856900

• Re-programming of gene expression in the CS8 rice line over-expressing ADPglucose pyrophosphorylase induces a suppressor of starch biosynthesis., 2019, Plant J.

Genbank accession number

• Reciprocal immunoprecipitation and pull-down assays indicated an interaction between SBDCP1 and starch synthase IIIa (SSIIIa), which was down-regulated at the protein level in the CS8 line
• Furthermore, binding by SBDCP1 inhibited SSIIIa starch polymerization activity in a non-competitive manner
• Surprisingly, artificial microRNA gene suppression of SBDCP1 restored protein expression levels of SSIIIa in the CS8 line resulting in starch with lower amylose content and increased amylopectin chains with a higher degree of polymerization