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Article Addendum

PAS/LOV proteins: A proposed new class of plant blue light receptor

Yasunobu Ogura, Satoru Tokutomi, Masamitsu Wada and Tomohiro Kiyosue

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The light, oxygen, or voltage (LOV) domain belongs to the Per-ARNT-Sim (PAS) superfamily of domains, and functions with the flavin chromophore as a module for sensing blue light in plants and fungi. The Arabidopsis thaliana PAS/LOV proteins (PLPs), of unknown function, possess an N-terminal PAS domain and a C-terminal LOV domain. Our recent analysis using yeast two-hybrid and Escherichia coli protein production systems reveals that the interactions of Arabidopsis PLPs with several proteins diminish under blue light illumination and that the PLP LOV domain may bind to a flavin chromophore. These results suggest that PLP functions as a blue light receptor. Homologs of PLP exist in rice, tomato, and moss. The LOV domains of these PLP homologs form a distinct group in phylogenetic analysis. These facts suggest that PLP belongs to a new class of plant blue light receptor.

Addendum to: Ogura Y, Komatsu A, Zikihara K, Nanjo T, Tokutomi S, Wada M, Kiyosue T. Blue light diminishes interaction of PAS/LOV proteins, putative blue light receptors in Arabidopsis thaliana, with their interacting partners. J Plant Res 2008; 121: 97–105.

Authors

Yasunobu Ogura

Kagawa University

Satoru Tokutomi

Osaka Prefecture University

Masamitsu Wada

Kyushu Univeristy

Tomohiro Kiyosue

Kagawa University

Purchase article for $19

Subscribe to this journal for $79/year