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. Author manuscript; available in PMC: 2016 Apr 15.
Published in final edited form as: Mov Disord. 2015 Mar 17;30(5):624–631. doi: 10.1002/mds.26184

Figure 1. Schematic illustration of common opsins.

Figure 1

(a) When blue light hits channelrhodopsin-2, the channel opens allowing influx of cations. (b) When yellow light hits halorhodopsin, chloride is pumped into the cell. Adapted from 1.