1YH3:
reference: Crystal structure of human CD38 extracellular domain., Liu Q, Kriksunov IA, Graeff R, Munshi C, Lee HC, Hao Q, Structure (Camb) 2005 Sep;13(9):1331-9. PMID: 16154090

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