6EOE:
reference: AMPylation targets the rate-limiting step of BiP's ATPase cycle for its functional inactivation., Preissler S, Rohland L, Yan Y, Chen R, Read RJ, Ron D, Elife. 2017 Oct 24;6. pii: e29428. doi: 10.7554/eLife.29428. PMID: 29064368

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