GLN — Nicotiana attenuata

Summary

A4A49_38160 (GLN, GLNA) encodes a glutamine synthetase (EC 6.3.1.2). In coyote tobacco (Nicotiana attenuata), this gene is associated with glutamine biosynthesis, nitrate assimilation, the ammonia assimilation cycle, and amino acid metabolism. It has been linked to leaf senescence and development, cell death, response to water and cadmium, blue light response, and regulation of gene expression. The encoded protein is associated with the chloroplast thylakoid membrane, chloroplast envelope, plastid, and apoplast. Associations with agronomic traits include photosynthetic rate, chlorophyll content, root dry weight, protein content, flowering time, and proline content. Studies of related genes in other species link the family to nitrogen assimilation, ammonium tolerance, senescence, and biomass.