2LCS:
reference: Distinct Peptide Binding Specificities of Src Homology 3 (SH3) Protein Domains Can Be Determined by Modulation of Local Energetics across the Binding Interface., Gorelik M, Davidson AR, J Biol Chem. 2012 Mar 16;287(12):9168-77. Epub 2012 Jan 25. PMID: 22277653

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