ARA1 — Oryza sativa Indica Group

Summary

BGIOSGA007152 (ARA1) on Indica rice chromosome 2 encodes a GHMP-kinase family protein with L-arabinokinase and galactokinase activities, and binds ATP. The gene is associated with starch biosynthesis, amylopectin anabolism, regulation of starch metabolism, galactose metabolism, carbohydrate metabolism, seed development, and protein phosphorylation. It has been linked to anther development, amylopectin structure, auxin sensitivity, lateral root number and development, arabinose metabolism and toxicity, carbon energy status signaling, sugar signaling, pollen development, vegetative growth, grain traits, and cell wall composition. The product localizes to the plasmodesma, cytosol, and cytoplasm. Studies of related genes in other species link the family to starch synthesis, and sequence similarity connections extend to grain weight, amylose content, seed weight, pollen fertility, and stripe rust disease response.