5W3R:
reference: Diversity in Peptide Recognition by the SH2 Domain of SH2B1., McKercher MA, Guan X, Tan Z, Wuttke DS, Proteins. 2017 Nov 11. doi: 10.1002/prot.25420. PMID: 29127727

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