To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie-S2 A HeLa cell expressing Opn4 and mCh- γ9 shows γ9 translocation upon addition of 50 μM 11-cis-retinal while photoactivation at 515 nm. Scale bar 10 mm. Melanopsin (Opn4) utilizes Gαi and Gβγ as major signal transducers Dinesh Kankanamge, Kasun Ratnayake, Saroopa Samaradivakara, and Ajith Karunarathne J Cell Sci 2018. 131:None-None; doi: 10.1242/jcs.212910 Download Original Video