Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 404, Issue 1, Pages 52-56Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2010.11.056
Keywords
Complementary chromatic adaptation; Morphology; Photosensing; Phycobiliprotein; Phycobiliprotein linker; Pigmentation
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Funding
- US Department of Energy (Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science) [DE-FG02-91ER20021]
- National Science Foundation [MCB-0643516]
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Functions of phycobiliprotein (PBP) linkers are less well studied than other PBP polypeptides that are structural components or required for the synthesis of the light-harvesting phycobilisome (PBS) complexes. Linkers serve both structural and functional roles in PBSs. Here, we report the isolation of a phycoerythrin (PE) rod-linker mutant and a novel PE-deficient mutant in Fremyella diplosiphon. We describe their phenotypic characterization, including light-dependent photosynthetic pigment accumulation and photoregulation of cellular morphology. PE-linker protein CpeE and a novel protein impact PE accumulation, and thus PBS function, primarily under green light conditions. (C) 2010 Elsevier Inc. All rights reserved.
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