2B1H:
reference: Crystal structures of human immunodeficiency virus type 1 (HIV-1) neutralizing antibody 2219 in complex with three different V3 peptides reveal a new binding mode for HIV-1 cross-reactivity., Stanfield RL, Gorny MK, Zolla-Pazner S, Wilson IA, J Virol. 2006 Jun;80(12):6093-105. PMID: 16731948

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