Gv1 is a genetic locus that coordinately regulates the expression of multiple murine leukemia virus-related endogenous proviral sequences. A quantitative nuclease protection assay for typing Gv1 inheritance has been developed. Use of this assay demonstrates that Gv1 controls transcription of polytropic but not of modified polytropic endogenous proviruses. A combination of genetic techniques wer...

A human gene with potent antiretroviral activity has recently been found to encode a new member of the family of cytidine deaminases, previously known to be involved in mRNA editing, immunoglobulin gene class switching, and immunoglobulin gene hypermutation. The enzyme attacks viral DNA as it is synthesized in infected cells and prevents the formation of functional proviruses. The Vif gene of H...