Glucose-1-phosphate adenylyltransferase family protein;(source:Araport11)
TAIR Curator Summary:
Encodes the large subunit of ADP-glucose pyrophosphorylase, the enzyme which catalyzes the first and limiting step in starch biosynthesis. The large subunit plays a regulatory role whereas the small subunit (ApS) is the catalytic isoform. Four isoforms of the large subunit (ApL1-4) have been described.
TAIR Short Description:
Glucose-1-phosphate adenylyltransferase family protein