Ontology highlight
ABSTRACT:
SUBMITTER: Yang X
PROVIDER: S-EPMC2747172 | biostudies-literature | 2009 Sep
REPOSITORIES: biostudies-literature
Yang Xiaojing X Kuk Jane J Moffat Keith K
Proceedings of the National Academy of Sciences of the United States of America 20090831 37
Phytochromes are red-light photoreceptors that regulate light responses in plants, fungi, and bacteria by means of reversible photoconversion between red (Pr) and far-red (Pfr) light-absorbing states. Here, we report the crystal structure of the Q188L mutant of Pseudomonas aeruginosa bacteriophytochrome (PaBphP) photosensory core module, which exhibits altered photoconversion behavior and different crystal packing from wild type. We observe two distinct chromophore conformations in the Q188L cry ...[more]