GLN1.3 — Brassica napus

Summary

BnGLN1.3 (GLN1.3) on chromosome A05 of oilseed rape encodes a glutamine synthetase, an enzyme with glutamine synthetase activity that also binds ATP and copper. The gene is associated with nitrogen assimilation and metabolism, ammonium assimilation and metabolism, glutamate metabolism, proline metabolism, photorespiration, nitrate assimilation, and the glyoxylate cycle. It has been linked to sporopollenin biosynthesis, anther development, microsporogenesis, and fatty acid and lipid oxidation. Associations with agronomic traits include cytoplasmic male sterility, drought tolerance, seed development, plant growth, root development and senescence, and vegetative growth. The encoded protein localises to the cytosol, cytosolic ribosome, cytoplasm, and plasmalemma. Studies of related genes in other species link the family to ammonium tolerance, lateral root development, and glutamine synthesis.