P5CS — Zea mays

Summary

ZM00001EB347680 (ZmP5CS) on maize chromosome 8 encodes a protein with glutamate 5-kinase (EC 2.7.2.11) and glutamylphosphate reductase (EC 1.2.1.41) activities. The gene is associated with L-proline biosynthetic process, proline metabolism, proline transport, CAM photosynthesis, nitrogen utilization, ear development, and regulation of protein folding. The encoded protein localizes to the cytoplasm, mitochondria, Golgi complex, and plasmodesmata. ZmP5CS is linked to grain weight, grain number, ear number, spike weight, root and shoot dry weight, leaf angle, and carotenoid, anthocyanin, and soluble protein content. It is also associated with salinity, heat, cold, and osmotic stress tolerance, as well as proline accumulation, root elongation at low water potential, and cell membrane stability. Related genes in other species are linked to drought resistance, salt tolerance, and pathogen resistance.