PII — Phaseolus vulgaris

Summary

PHAVU_001G215500, designated PvPII or PvGLB1, encodes a nitrogen regulatory protein P-II homolog on chromosome 1 of French bean (Phaseolus vulgaris). The product possesses acetylglutamate kinase regulator activity, acetylglutamate kinase activity, arginine binding, and structural molecule activity, and it binds ATP, magnesium, and other metals. PvPII is associated with regulation of nitrogen utilization, response to sucrose and light stimulus, anthocyanin anabolism, protein secretion, and intracellular transport, and it localizes to the chloroplast thylakoid, plastid, mitochondria, Golgi membrane, endoplasmic reticulum, and plasmodesmata. The gene is linked to traits including nitrate and nitrogen sensitivity, nitrate uptake, arsenic concentration, stomatal complex closure time, root morphology, and plant embryo development, as well as phenotypes such as hypersensitivity to salt stress, impaired pollen tube germination, and resistance to Pseudomonas syringae and Botrytis cinerea. Related genes in other species connect the family to nitrogen sensing, nitrite sensitivity, and embryo development.