398D:
reference: Crystal structure of an eight-base pair duplex containing the 3'-DNA-RNA-5' junction formed during initiation of minus-strand synthesis of HIV replication., Mueller U, Maier G, Mochi Onori A, Cellai L, Heumann H, Heinemann U, Biochemistry 1998 Sep 1;37(35):12005-11. PMID: 9724510

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