2K3B:
reference: Structures of invisible, excited protein states by relaxation dispersion NMR spectroscopy., Vallurupalli P, Hansen DF, Kay LE, Proc Natl Acad Sci U S A. 2008 Aug 19;105(33):11766-71. Epub 2008 Aug 13. PMID: 18701719

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