1TRF:
reference: Solution structure of the TR1C fragment of skeletal muscle troponin-C., Findlay WA, Sonnichsen FD, Sykes BD, J Biol Chem 1994 Mar 4;269(9):6773-8. PMID: 8120037

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