Report

Arabidopsis NPH3: A NPH1 Photoreceptor-Interacting Protein Essential for Phototropism

Science  29 Oct 1999:
Vol. 286, Issue 5441, pp. 961-964
DOI: 10.1126/science.286.5441.961

You are currently viewing the abstract.

View Full Text

Via your Institution

Log in through your institution

Log in through your institution


Abstract

Phototropism of Arabidopsis thalianaseedlings in response to a blue light source is initiated by nonphototropic hypocotyl 1 (NPH1), a light-activated serine-threonine protein kinase. Mutations in three loci [NPH2, root phototropism 2 (RPT2), and NPH3] disrupt early signaling occurring downstream of the NPH1 photoreceptor. TheNPH3 gene, now cloned, encodes a NPH1-interacting protein. NPH3 is a member of a large protein family, apparently specific to higher plants, and may function as an adapter or scaffold protein to bring together the enzymatic components of a NPH1-activated phosphorelay.

  • * To whom correspondence should be addressed. E-mail: liscumm{at}missouri.edu

View Full Text

Cited By...