1L3Y:
reference: Cysteine-rich module structure reveals a fulcrum for integrin rearrangement upon activation., Beglova N, Blacklow SC, Takagi J, Springer TA, Nat Struct Biol 2002 Apr;9(4):282-7. PMID: 11896403

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