Related Experiment Video
Updated: Aug 19, 2026

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput
Published on: March 30, 2018
Arabidopsis NPH1: a protein kinase with a putative redox-sensing domain
E Huala1, P W Oeller, E Liscum
1Department of Plant Biology, Carnegie Institution of Washington, 260 Panama Street, Stanford, CA 94305, USA.
Abstract:
The NPH1 (nonphototropic hypocotyl 1) gene encodes an essential component acting very early in the signal-transduction chain for phototropism. Arabidopsis NPH1 contains a serine-threonine kinase domain and LOV1 and LOV2 repeats that share similarity (36 to 56 percent) with Halobacterium salinarium Bat, Azotobacter vinelandii NIFL, Neurospora crassa White Collar-1, Escherichia coli Aer, and the Eag family of potassium-channel proteins from Drosophila and mammals. Sequence similarity with a known (NIFL) and a suspected (Aer) flavoprotein suggests that NPH1 LOV1 and LOV2 may be flavin-binding domains that regulate kinase activity in response to blue light-induced redox changes.
Related Concept Videos
Key Elements for Plant Nutrition
Riboswitches
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
Cell Signaling in Plants
MAPK Signaling Cascades

