2JNF:
reference: The structure of Lethocerus troponin C: insights into the mechanism of stretch activation in muscles., De Nicola G, Burkart C, Qiu F, Agianian B, Labeit S, Martin S, Bullard B, Pastore A, Structure. 2007 Jul;15(7):813-24. PMID: 17637342

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