CDPK — Nicotiana attenuata

Summary

A4A49_14568 (CDPK) on coyote tobacco (Nicotiana attenuata) chromosome 5 encodes a calcium-dependent protein kinase (CDPK) with serine/threonine kinase activity, calcium ion binding, calmodulin binding, and ATP binding, belonging to the CDPK_Ser/Thr_kinases and EF-hand domain families. The gene is associated with defence responses, including defence response to fungi, virus-induced PTGS, and cell death, as well as ethylene anabolism, seed germination, response to abscisic acid, sensitization, nuclear export, cellular localization, intracellular signal transduction, activation of salinity response, and homeostasis. It is linked to leaf chlorophyll content and chlorophyll content traits. The encoded protein localizes to the membrane, cytoplasm, and nucleus. Studies of related genes in other species link the family to similar stress signalling and developmental processes.