Abstract CarH is a coenzyme B12-dependent photoreceptor involved in regulating carotenoid biosynthesis. How light-triggered cleavage of the B12 Co-C bond culminates in CarH tetramer dissociation to initiate transcription remains unclear. Here. a series of crystal structures of the CarH B12-binding domain after illumination suggest formation of unforeseen intermediate states prior to t... https://www.ealisboa.com/quick-offer-NEW-LED-Illumivein-Vein-Finder-Transilluminator-to-Find-Veins-for-Phlebotomy-and-IV-must-buy/