Study Data from Korea Advanced Institute of Science and Technology (KAIST) Provide New Insights into Mathematical Theories (Phytochrome-interacting factors have both shared and distinct biological roles)
By a News Reporter-Staff News Editor at Life Science Weekly -- Research findings on Proteins are discussed in a new report. According to news reporting out of Daejeon, South Korea, by NewsRx editors, research stated, "Phytochromes are plant photoreceptors that perceive red and far-red light. Upon the perception of light in Arabidopsis, light-activated phytochromes enter the nucleus and act on a set of interacting proteins, modulating their activities and thereby altering the expression levels of ?10% of the organism's entire gene complement."
Our news journalists obtained a quote from the research from the Korea Advanced Institute of Science and Technology (KAIST), "Phytochromeinteracting factors (PIFs) belonging to Arabidopsis basic helix-loop-helix (bHLH) subgroup 15 are key interacting proteins that play negative roles in light responses. Their activities are post-translationally countered by light-activated phytochromes, which promote the degradation of PIFs and directly or indirectly inhibit their binding to DNA. The PIFs share a high degree of similarity, but examinations of pif single and multiple mutants have indicated that they have shared and distinct functions in various developmental and physiological processes. These are believed to stem from differences in both intrinsic protein properties and their gene expression patterns. In an effort to clarify the basis of these shared and distinct functions, we compared recently published genome-wide ChIP data, developmental gene expression maps, and responses to various stimuli for the various PIFs."
According to the news editors, the research concluded: "Based on our observations, we propose that the biological roles of PIFs stem from their shared and distinct DNA binding targets and specific gene expression patterns."
For more information on this research see: Phytochrome-interacting factors have both shared and distinct biological roles. Molecules and Cells, 2013;35(5):371-80. (Springer - www.springer.com; Molecules and Cells - www.springerlink.com/content/1016-8478/)
Our news journalists report that additional information may be obtained by contacting J. Jeong, Dept. of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, South Korea (see also Mathematical Theories).
Keywords for this news article include: Daejeon, South Korea, Asia, Biological Pigments, Phytochrome, Plant Proteins.
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