| description | Protein involved in the convertion of light directly into a signal These proteins are classified in a limited number of families based on the chemical structure of the light-absorbing chromophores involved, and also on protein sequence similarities to discriminate the many photoreceptor proteins that bind a flavin derivative. Accordingly, the most important families are the rhodopsins, the phytochromes, the xanthopsins, the cryptochromes, the phototropins and the BLUF proteins |
