Family: Rhodopsins (TCDB: 3.E.1 - Ion-translocating Microbial Rhodopsin (MR) Family)
Subfamily: Channelrhodopsins (ChR)
Members: ChR1, ChR2 and several variants as well as designed mutations
Description: Channelrhodopsins (ChRs) are light-gated cation channels derived from algae. They are seven-transmembrane proteins containing the light-isomerizable chromophore retinal. ChRs serve as photoreceptors in microbial organisms and are a commonly used tool in optogenetics.
ChR2 Background Information