STMEK2 — Solanum tuberosum

Summary

PGSC0003DMG400009183 (STMEK2, also known as StMKK5) on potato chromosome 3 encodes a mitogen-activated protein kinase kinase (MAPKK) with EC 2.7.12.2, possessing RNA polymerase II CTD heptapeptide repeat kinase, MAPKK, MEKK, protein tyrosine kinase, CDK, and protein serine/threonine kinase activities. The gene is associated with the MAPK cascade, defense response to other organisms, response to chitin, hypersensitive response-programmed cell death, metabolic burst, stomatal closure, virus-induced PTGS, tissue morphogenesis, inflorescence development, floral organ abscission, cell plate assembly, mitotic cell cycle modulation, and response to carbohydrate. In potato, STMEK2 is linked to resistance to Phytophthora pathogens. It is also associated with drought sensitivity, drought tolerance, proline content, sugar content, salt tolerance, pollen development, and disease resistance. The protein localizes to the plasmalemma, cytoplasm, and nucleus.