NPK1 — Nicotiana attenuata

Summary

A4A49_16913 (NPK1) on chromosome 6 of coyote tobacco (Nicotiana attenuata) encodes a protein with a Plant_MAPKKK domain, protein kinase domains, and annotated MAPKK activity, protein tyrosine kinase activity, calcium/calmodulin-dependent kinase activity, calcium-dependent protein serine/threonine kinase activity, calmodulin binding, calcium ion binding, protein serine kinase activity, protein serine/threonine kinase activity, and ATP binding. The gene is associated with the MAPK cascade, cytokinesis, cell cycle phases (prophase, metaphase, anaphase, interphase), mitosis, meiosis, DNA replication, lateral growth, and cell localization. It is linked to membrane, plasmalemma, cytoplasm, and nucleus localization. NPK1 is associated with drought tolerance. Studies of related genes in other species link the family to sugar content and stomatal opening.