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Class: Cyanobacteriochrome

Family: cysteine insert

Origin: Nostoc punctiforme

Chromophore(s): PCB





Static ground-state absorption spectra are shown for the 15ZPv dark ground state (violet curve) and in the 15EPo ground state (orange curve). Spectra are scaled to the peak absorption at 280 nm (not shown).


  1. Photoconversion changes bilin chromophore conjugation and protein secondary structure in the violet/orange cyanobacteriochrome NpF2163g3. Lim S1, Rockwell NC, Martin SS, Dallas JL, Lagarias JC, Ames JB.
  2. Diverse two-cysteine photocycles in phytochromes and cyanobacteriochromes. Rockwell NC1, Martin SS, Feoktistova K, Lagarias JC.
  3. Primary and Secondary Photodynamics of the Violet/Orange Dual-Cysteine NpF2164g3 Cyanobacteriochrome Domain from Nostoc Punctiforme, Sean M. Gottlieb, Peter W. Kim, Scott C. Corley, Dorte Madsen, Samuel J. Hanke, Che-Wei Chang, Nathan C. Rockwell, Shelley S. Martin, J. Clark Lagarias, and Delmar S. Larsen, Biochemistry, 53, 1029–1040  (2014).