1DDM:
reference: Multiple modes of peptide recognition by the PTB domain of the cell fate determinant Numb., Zwahlen C, Li SC, Kay LE, Pawson T, Forman-Kay JD, EMBO J 2000 Apr 3;19(7):1505-15. PMID: 10747019

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