3HLS:
reference: Crystal structure of the signaling helix coiled-coil domain of the beta1 subunit of the soluble guanylyl cyclase., Ma X, Beuve A, van den Akker F, BMC Struct Biol. 2010 Jan 27;10:2. PMID: 20105301

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