3WSQ:
reference: Insights into HER2 signaling from step-by-step optimization of anti-HER2 antibodies., Fu W, Wang Y, Zhang Y, Xiong L, Takeda H, Ding L, Xu Q, He L, Tan W, Bethune AN, Zhou L, MAbs. 2014 Jul-Aug;6(4):978-90. doi: 10.4161/mabs.28786. Epub 2014 Apr 16. PMID: 24838231

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