>pdb|8YEL|A Chain A, Cation channel rhodopsin 4 MKTIIALSYIFCLVFADYKDDDDAMGTTSAPSLSDPNWQYGMGGWNNPRLPNFNLHDPTVIGVDWLGFLCLLGASLALMY KLMSFKGPDGDQEFFVGYREEKCLSIYVNLIAAITYWGRICAHFNNDMGLSLSVNYFKYLDYIFTCPILTLDLLWSLNLP YKITYSLFVGLTIACGVFCNAFEPPARYLWFMFGCFIFAFTWISIIRLVYARFQQFLNEDAKKIRAPLKLSLTLYFSIWC GYPALWLLTEFGAISQLAAHVTTVIMDVAAKSVYGFALLKFQLGVDKRDVWLDELKSVRYRDVVPQIRPSKTREGRMEYS EDGDFMRPSKGKRAEGDYMNPRWDHHDDGRRLPDSREMDEQVHEKDQEISSTMKQIADLNKQLSAMQESEAVENLYFQ