small monomeric binders selective for Am1_c0023g2 photostates
Protein DomainSmall monomeric protein binders of approximately 50 residues were developed to recognize defined photostates of the cyanobacteriochrome Am1_c0023g2. These binders selectively target the Pg or Pr states when Am1_c0023g2 carries phycocyanobilin and the Pfr state when it carries biliverdin, enabling light-dependent protein-protein interactions and transcriptional control.