Journal
CURRENT OPINION IN PLANT BIOLOGY
Volume 14, Issue 5, Pages 498-506Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.pbi.2011.06.002
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Funding
- U.S. National Science Foundation [MCB07191530]
- UW College of Agricultural and Life Sciences (Hatch)
- American Heart Association
- UWM Research Growth Initiative (RGI)
- Div Of Molecular and Cellular Bioscience
- Direct For Biological Sciences [1022010] Funding Source: National Science Foundation
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Phytochromes are nature's primary photoreceptors dedicated to detecting the red and far-red regions of the visible light spectrum, a region also essential for photosynthesis and thus crucial to the survival of plants and other photosynthetic organisms. Given their roles in measuring competition and diurnal/seasonal light fluctuations, understanding how phytochromes work at the molecular level would greatly aid in engineering crop plants better suited to specific agricultural settings. Recently, scientists have determined the three-dimensional structures of prokaryotic phytochromes, which now provide clues as to how these modular photoreceptors might work at the atomic level. The models point toward a largely unifying mechanism whereby novel knot, hairpin, and dimeric interfaces transduce photoreversible bilin isomerization into protein conformational changes that alter signal output.
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