CDPK — Nicotiana attenuata

Summary

A4A49_03129 (CDPK) on coyote tobacco chromosome 5 encodes a calcium-dependent protein kinase (CDPK) with serine/threonine kinase activity, containing EF-hand calcium-binding domains and calmodulin-binding sites. This gene is associated with diverse biological processes including defense responses, response to abscisic acid, response to cold, activation of salinity response, ethylene anabolism, seed germination, cell death, intracellular signal transduction, nuclear export, sensitization, cellular localization, homeostasis, and virus-induced PTGS. The encoded protein localizes to the membrane, plasmalemma, cytoplasm, and nucleus. CDPK is also linked to leaf chlorophyll content and chlorophyll content traits. Studies of related genes in other species connect this gene family to calcium signaling in stress responses and development.