XB-ART-38236Nat Neurosci June 1, 2008; 11 (6): 631-3.
Red-shifted optogenetic excitation: a tool for fast neural control derived from Volvox carteri.
The introduction of two microbial opsin-based tools, channelrhodopsin-2 (ChR2) and halorhodopsin (NpHR), to neuroscience has generated interest in fast, multimodal, cell type-specific neural circuit control. Here we describe a cation-conducting channelrhodopsin (VChR1) from Volvox carteri that can drive spiking at 589 nm, with excitation maximum red-shifted approximately 70 nm compared with ChR2. These results demonstrate fast photostimulation with yellow light, thereby defining a functionally distinct third category of microbial rhodopsin proteins.
PubMed ID: 18432196
PMC ID: PMC2692303
Article link: Nat Neurosci
Genes referenced: rho