6CSO:
reference: Structural mechanisms of selectivity and gating in anion channelrhodopsins., Kato HE, Kim YS, Paggi JM, Evans KE, Allen WE, Richardson C, Inoue K, Ito S, Ramakrishnan C, Fenno LE, Yamashita K, Hilger D, Lee SY, Berndt A, Shen K, Kandori H, Dror RO, Kobilka BK, Deisseroth K, Nature. 2018 Aug 29. pii: 10.1038/s41586-018-0504-5. doi:, 10.1038/s41586-018-0504-5. PMID: 30158697

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).