Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g10760	Mediates the incorporation of phosphate into starch-like alpha-glucan, mostly at the C-6 position of glucose units.	The Arabidopsis sex1 mutant is defective in the R1 protein, a general regulator of starch degradation in plants, and not in the chloroplast hexose transporter.; 2001; DOI: 10.1105/tpc.010091; PMID: 11487701; https://pubmed.ncbi.nlm.nih.gov/11487701/
Arabidopsis	At4g24450	Mediates the incorporation of phosphate into alpha-glucan, mostly at the C-6 position of glucose units.	No verified direct reference in this release
Rice	Os12g0297500	Mediates the incorporation of phosphate into starch-like phospho-alpha-glucan, mostly at the C-3 position of glucose units.	No verified direct reference in this release