Journal
BIOMOLECULAR NMR ASSIGNMENTS
Volume 10, Issue 1, Pages 157-161Publisher
SPRINGER
DOI: 10.1007/s12104-015-9657-4
Keywords
Cyanobacteriochrome; CBCR; Photoreceptor; Phytochrome; Cyanobacteria; Phycocyanobilin; NMR
Categories
Funding
- Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, United States Department of Energy [DOE DE-FG02-09ER16117]
- NIH [RR11973]
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Cyanobacteriochromes (CBCRs) are cyanobacterial photosensory proteins with a tetrapyrrole (bilin) chromophore that belong to the phytochrome superfamily. Like phytochromes, CBCRs photoconvert between two photostates with distinct spectral properties. NpR6012g4 from Nostoc punctiforme is a model system for widespread CBCRs with conserved red/green photocycles. Atomic-level structural information for the photoproduct state in this subfamily is not known. Here, we report NMR backbone chemical shift assignments of the light-activated state of NpR6012g4 (BMRB no. 26577) as a first step toward determining its atomic resolution structure.
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