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The HIV-1 Gag protein orchestrates all steps of virion genesis, including membrane targeting and RNA recruitment into virions. Using crosslinking-immunoprecipitation (CLIP) sequencing, we uncover several dramatic changes in the RNA-binding properties of Gag that occur during virion genesis, coincident with membrane binding, multimerization, and proteolytic(More)
Endogenous Retroviruses (ERVs) are retroviruses that over the course of evolution have integrated into germline cells and eventually become part of the host genome. They proliferate within the germline of their host, making up ~5% of the human and mouse genome sequences. Several lines of evidence have suggested a decline in the rate of ERV integration into(More)
Endogenous retroviral sequences provide a molecular fossil record of ancient infections whose analysis might illuminate mechanisms of viral extinction. A close relative of gammaretroviruses, HERV-T, circulated in primates for ~25 million years (MY) before apparent extinction within the past ~8 MY. Construction of a near-complete catalog of HERV-T fossils in(More)
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