title: Structure and function of the UV-B photoreceptor UVR8.
abstract: UVR8 is a UV-B photoreceptor that employs specific tryptophans in its primary sequence as chromophores in photoreception. UV-B absorption causes dissociation of the dimeric photoreceptor by neutralizing interactions between monomers. The monomeric form initiates signalling through interaction with the COP1 protein, leading to transcriptional responses. This article discusses the structural basis of UVR8 function, highlighting recent research on the mechanism of photoreception and on interactions with other proteins involved in signalling and regulation.
authors.affiliation: Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, Bower Building, University of Glasgow, Glasgow G12 8QQ, UK. Electronic address: Gareth.Jenkins@Glasgow.ac.uk.
authors.forename: Gareth I
authors.initials: GI
authors.lastname: Jenkins
mesh_terms: D017360:Arabidopsis / Q000737:chemistry*; D029681:Arabidopsis Proteins / Q000737:chemistry*; D002868:Chromosomal Proteins, Non-Histone / Q000737:chemistry*; D008958:Models, Molecular; D055519:Photoreceptors, Plant / Q000737:chemistry*; D011487:Protein Conformation; D055503:Protein Multimerization; D015398:Signal Transduction; D044767:Ubiquitin-Protein Ligases / Q000737:chemistry
chemical_list: D029681:Arabidopsis Proteins; D002868:Chromosomal Proteins, Non-Histone; D055519:Photoreceptors, Plant; C525052:Uvr8 protein, Arabidopsis; C471983:AT2G32950 protein, Arabidopsis; D044767:Ubiquitin-Protein Ligases