4RQS:
reference: Crystal structure of a fully glycosylated HIV-1 gp120 core reveals a stabilizing role for the glycan at Asn262., Kong L, Wilson IA, Kwong PD, Proteins. 2014 Dec 26. doi: 10.1002/prot.24747. PMID: 25546301

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