NDK1 — Solanum tuberosum

Summary

PGSC0003DMG400012276, designated NDK1 (also known as StNDPK-IA, NDPK1, and NDPK2) on potato chromosome 8, encodes a nucleoside diphosphate kinase (EC 2.7.4.6) with annotated molecular functions including S-nitrosylase, catalase, GTPase inhibitor, and red/far-red light photoreceptor activities. The gene is associated with nucleoside triphosphate anabolism, S-transnitrosylation, oxidative phosphorylation, cellular response to hydrogen peroxide, and reactive oxygen species-mediated programmed cell death. It localizes to chloroplast thylakoid lumen, mitochondrial inner membrane, tonoplast, and heterotrimeric G-protein complex. NDK1 is linked to carbon distribution and metabolism, oxygen uptake, root respiration, and glycolytic flux. Associations with agronomic traits include grain yield, tuber size, photosynthetic ability, leaf yellowing tolerance, submergence tolerance, photoperiod sensitivity, and responses to red, far-red, blue, and UV light. Studies of related genes in other species connect the family to phytochrome-mediated light signaling, oxidative stress tolerance, and stomatal aperture.