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The 5' leader of the human immunodeficiency virus type 1 (HIV-1) genomic RNA harbors an internal ribosome entry site (IRES) that is functional during the G2/M phase of the cell cycle. Here we show that translation initiation mediated by the HIV-1 IRES requires the participation of trans-acting cellular factors other than the canonical translational(More)
Internal ribosome entry site (IRES) RNAs are important regulators of gene expression, but their diverse molecular mechanisms remain partially understood. The HIV-1 gag transcript leader contains an IRES that may be a good model for understanding the function of many other IRESs. We investigated the possibility that this IRES' function is linked to both the(More)
The central dogma of gene expression (DNA to RNA to protein) is universal, but in different domains of life there are fundamental mechanistic differences within this pathway. For example, the canonical molecular signals used to initiate protein synthesis in bacteria and eukaryotes are mutually exclusive. However, the core structures and conformational(More)
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