CPK4 — Solanum tuberosum

Summary

PGSC0003DMG400016820, the potato gene CPK4 on chromosome 10, encodes a calcium-dependent protein kinase 4 with serine/threonine kinase activity, calmodulin binding, and calcium ion binding. This product belongs to the CDPK family and contains EF-hand domains. In potato, CPK4 is associated with diverse biological processes including immune response, stomatal movement, wound healing, seed germination, cell death, embryogenesis, sporulation, and response to salt. It is linked to abscisic acid-mediated signaling, drought and salinity responses, and hormone signaling pathways. The gene product localizes to the membrane, cytosol, plasmalemma, cytoplasm, and nucleus. CPK4 is also associated with proline content.