1jnu: Difference between revisions

Revision as of 20:31, 1 July 2008

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File:1jnu.png

Template:STRUCTURE 1jnu

Photoexcited structure of the plant photoreceptor domain, phy3 LOV2Photoexcited structure of the plant photoreceptor domain, phy3 LOV2

Template:ABSTRACT PUBMED 12034897

About this StructureAbout this Structure

1JNU is a Single protein structure of sequence from Eukaryota. Full crystallographic information is available from OCA.

ReferenceReference

Photoexcited structure of a plant photoreceptor domain reveals a light-driven molecular switch., Crosson S, Moffat K, Plant Cell. 2002 May;14(5):1067-75. PMID:12034897

Page seeded by OCA on Tue Jul 1 20:31:39 2008

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OCA

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-'''Photoexcited structure of the plant photoreceptor domain, phy3 LOV2'''
+===Photoexcited structure of the plant photoreceptor domain, phy3 LOV2===
-==Overview==
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-The phototropins are flavoprotein kinases that control phototropic bending, light-induced chloroplast movement, and stomatal opening in plants. Two flavin mononucleotide binding light, oxygen, or voltage (LOV) domains are the sites for initial photochemistry in these blue light photoreceptors. We have determined the steady state, photoexcited crystal structure of a flavin-bound LOV domain. The structure reveals a unique photochemical switch in the flavin binding pocket in which the absorption of light drives the formation of a reversible covalent bond between a highly conserved Cys residue and the flavin cofactor. This provides a molecular picture of a cysteinyl-flavin covalent adduct, the presumed signaling species that leads to phototropin kinase activation and subsequent signal transduction. We identify closely related LOV domains in two eubacterial proteins that suggests the light-induced conformational change evident in this structure is an ancient biomolecular response to light, arising before the appearance of plants.
+The line below this paragraph, {{ABSTRACT_PUBMED_12034897}}, adds the Publication Abstract to the page
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+{{ABSTRACT_PUBMED_12034897}}
 ==About this Structure==
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 [[Category: Phy3]]
 [[Category: Plant photoreceptor]]
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