6IJZ:
reference: Structure of the hyperosmolality-gated calcium-permeable channel OSCA1.2., Liu X, Wang J, Sun L, Nat Commun. 2018 Nov 29;9(1):5060. doi: 10.1038/s41467-018-07564-5. PMID: 30498218

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