6NKP:
reference: Engineering Nanomolar Peptide LigandsThat Differentially Modulate EphA2 Receptor Signaling., Gomez-Soler M, Petersen Gehring M, Lechtenberg BC, Zapata-Mercado E, Hristova K, Pasquale EB, J Biol Chem. 2019 Apr 23. pii: RA119.008213. doi: 10.1074/jbc.RA119.008213. PMID: 31015204

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