6HAK:
reference: Structure of HIV-1 RT/dsRNA initiation complex prior to nucleotide incorporation., Das K, Martinez SE, DeStefano JJ, Arnold E, Proc Natl Acad Sci U S A. 2019 Mar 22. pii: 1814170116. doi:, 10.1073/pnas.1814170116. PMID: 30902895

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