Figure 1From: No vaccine against HIV yet-are we not perfectly equipped?Genome organization of HIV-1. The open reading frames for various polypeptides are shown as rectangles and the transcription initiation site as an arrow. Multiply-spliced mRNA transcripts encoding various proteins are shown with splice-sites together with 5'-cap and 3' polyA tails. Major translated polypeptides from these mRNAs are finally processed to produce 15 protein molecules.Back to article page