2LC9:
reference: Solution structure of a minor and transiently formed state of a T4 lysozyme mutant., Bouvignies G, Vallurupalli P, Hansen DF, Correia BE, Lange O, Bah A, Vernon RM, Dahlquist FW, Baker D, Kay LE, Nature. 2011 Aug 21;477(7362):111-4. doi: 10.1038/nature10349. PMID: 21857680

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