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Mol. Cells 2007; 23(2): 154-160

Published online April 30, 2007

© The Korean Society for Molecular and Cellular Biology

Comparative Proteomic Analysis of Blue Light Signaling Components in the Arabidopsis Cryptochrome 1 Mutant

Bong-Kwan Phee, Sebyul Park, Jin-Hwan Cho, Jong-Seong Jeon, Seong Hee Bhoo, Tae-Ryong Hahn

Abstract

An Arabidopsis hy4 mutant that is specifically impaired in its ability to undergo blue light dependent photomorphogenesis was used to identify cryptochrome 1 signaling-related components. Proteomic analysis revealed about 205 differentially expressed protein spots in the blue light-irradiated hy4 mutant compared to the wild-type. The proteins corresponding to 28 up-regulated and 33 down-regulated spots were identified. Obvious morphological changes in the hy4 mutant were closely related to the expression of various transcription factors. Our findings suggest that blue light signals may be involved in many cellular processes including disease resistance and stress responses.

Keywords Arabidopsis; Blue Light; Cryptochrome 1;, hy4; Hypocotyl Elongation; Proteomic Analysis

Article

Research Article

Mol. Cells 2007; 23(2): 154-160

Published online April 30, 2007

Copyright © The Korean Society for Molecular and Cellular Biology.

Comparative Proteomic Analysis of Blue Light Signaling Components in the Arabidopsis Cryptochrome 1 Mutant

Bong-Kwan Phee, Sebyul Park, Jin-Hwan Cho, Jong-Seong Jeon, Seong Hee Bhoo, Tae-Ryong Hahn

Abstract

An Arabidopsis hy4 mutant that is specifically impaired in its ability to undergo blue light dependent photomorphogenesis was used to identify cryptochrome 1 signaling-related components. Proteomic analysis revealed about 205 differentially expressed protein spots in the blue light-irradiated hy4 mutant compared to the wild-type. The proteins corresponding to 28 up-regulated and 33 down-regulated spots were identified. Obvious morphological changes in the hy4 mutant were closely related to the expression of various transcription factors. Our findings suggest that blue light signals may be involved in many cellular processes including disease resistance and stress responses.

Keywords: Arabidopsis, Blue Light, Cryptochrome 1,, hy4, Hypocotyl Elongation, Proteomic Analysis

Mol. Cells
Aug 31, 2022 Vol.45 No.8, pp. 513~602
COVER PICTURE
Cryo-EM structure of human porphyrin transporter ABCB6 (main figure) shows that binding of hemin (inset, magenta) in concert with two glutathione molecules (cyan) primes ABCB6 for high ATP turnover (Kim et al., pp. 575-587).

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