1DTL:
reference: Bepridil opens the regulatory N-terminal lobe of cardiac troponin C., Li Y, Love ML, Putkey JA, Cohen C, Proc Natl Acad Sci U S A 2000 May 9;97(10):5140-5. PMID: 10792039

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