Protein
Glucose-1-phosphate adenylyltransferase small subunit 2, chloroplastic/amyloplastic/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. The chloroplastic isoform 1 is essential for starch synthesis in leaf chloroplasts and the cytosolic isoform 2 for synthesis in seed endosperm.
Similarity
Belongs to the bacterial/plant glucose-1-phosphate adenylyltransferase family.
Sequence
MAMAAAMGVASPYHAAHAAASTSCDSLRLLVAEGRPRRPRGVASSSSSSSSAGRRRRPLVFSPRAVSDSKSSQTCLDPDASTSVLGIILGGGAGTRLYPLTKKRAKPAVPLGANYRLIDIPVSNCLNSNISKIYVLTQFNSASLNRHLSRAYGNNIGGYKNEGFVEVLAAQQSPDNPNWFQGTADAVRQYLWLFEEHNVMEFLILAGDHLYRMDYEKFIQAHRETDSDITVAALPMDEKRATAFGLMKIDEEGRIVEFAEKPKGEQLKAMMVDTTILGLDDVRAKEMPYIASMGIYVISKNVMLQLLREQFPGANDFGSEVIPGATNIGMRVQAYLYDGYWEDIGTIEAFYNANLGITKKPVPDFSFYDRSAPIYTQPRHLPPSKVLDADVTDSVIGEGCVIKNCKIHHSVVGLRSCISEGAIIEDSLLMGADYYETEADKKLLGEKGGIPIGIGKNCHIRRAIIDKNARIGDNVKIINVDNVQEAARETDGYFIKSGIVTVIKDALLPSGTVI