NPL1 — Arabidopsis thaliana

Summary

AT5G58140 (NPL1/PHOT2) encodes a protein with blue light photoreceptor activity, serine/threonine kinase activity, FMN binding, and additional annotated functions as a ubiquitin ligase substrate adaptor and protein phosphatase regulator. In Arabidopsis, PHOT2 is associated with phototropism, chloroplast migration and high-light avoidance responses, leaf expansion, stomatal aperture opening, and guard cell anion channel regulation. The gene is associated with pigment breakdown, zeaxanthin anabolism, the xanthophyll cycle, cytoplasmic streaming, nuclear movement, photosystem II repair, and responses to UV-A and UV-C. Associations include blue and red light sensitivity, photoperiod-sensitive flowering time, biomass yield, leaf angle and positioning, root branching and phototropism, submergence tolerance, bacterial and viral disease responses, iron concentration, sucrose content, and auxin content. The protein localizes to the plasma membrane, plastid, Golgi, cytosol, and nuclear ubiquitin ligase complexes.