Protein
Glucose-1-phosphate adenylyltransferase large subunit 2, cytosolic
Organism
Oryza sativa subsp. japonica
Function
Involved in synthesis of starch. Catalyzes the synthesis of ADP-glucose, a molecule that serves as an activated glycosyl donor for alpha-1,4-glucan synthesis. Essential for starch synthesis in seed endosperm (PubMed:17406793, Ref.13, PubMed:24747952, PubMed:27957808). Is essential for both catalytic and allosteric regulatory properties of the cytosolic heterotetramer enzyme (PubMed:24747952).
Similarity
Belongs to the bacterial/plant glucose-1-phosphate adenylyltransferase family.
Sequence
MQFMMPLDTNACAQPMRRAGEGAGTERLMERLNIGGMTQEKALRKRCFGDGVTGTARCVFTSDADRDTPHLRTQSSRKNYADASHVSAVILGGGTGVQLFPLTSTRATPAVPVGGCYRLIDIPMSNCFNSGINKIFVMTQFNSASLNRHIHHTYLGGGINFTDGSVQVLAATQMPDEPAGWFQGTADAIRKFMWILEDHYNQNNIEHVVILCGDQLYRMNYMELVQKHVDDNADITISCAPIDGSRASDYGLVKFDDSGRVIQFLEKPEGADLESMKVDTSFLSYAIDDKQKYPYIASMGIYVLKKDVLLDILKSKYAHLQDFGSEILPRAVLEHNVKACVFTEYWEDIGTIKSFFDANLALTEQPPKFEFYDPKTPFFTSPRYLPPARLEKCKIKDAIISDGCSFSECTIEHSVIGISSRVSIGCELKDTMMMGADQYETEEETSKLLFEGKVPIGIGENTKIRNCIIDMNARIGRNVIIANTQGVQESDHPEEGYYIRSGIVVILKNATIKDGTVI