| 1CDF: reference: Construction and analysis of a detailed three-dimensional model of the ligand binding domain of the human B cell receptor CD40., Bajorath J, Aruffo A, Proteins 1997 Jan;27(1):59-70. PMID: 9037712 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).