5Y7L:
reference: Solution structure of extracellular loop of human beta4 subunit of BK channel and its biological implication on ChTX sensitivity., Wang Y, Lan W, Yan Z, Gao J, Liu X, Wang S, Guo X, Wang C, Zhou H, Ding J, Cao C, Sci Rep. 2018 Mar 15;8(1):4571. doi: 10.1038/s41598-018-23016-y. PMID: 29545539

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