Replication of human immunodeficiency virus type 1 (HIV-1) is dependent on the viral Rev protein. This protein acts in concert with the cis-acting rev-responsive element present in intron-containing… (More)
The constitutive transport elements (CTEs) of type D retroviruses are cis-acting elements that promote nuclear export of incompletely spliced mRNAs. Unlike the Rev response element (RRE) of human… (More)
Cells normally restrict the nuclear export and expression of intron-containing mRNA. In many cell lines, this restriction can be overcome by inclusion of cis-acting elements, such as the Mason-Pfizer… (More)
Previous studies have suggested that salivary secretions may act as inhibitors of HIV-1 replication in vitro. This inhibitory activity was determined to be associated mainly with secretions obtained… (More)
COS-7 cells transfected with human immunodeficiency virus type 1 (HIV-1) proviral DNA produce virus in which three tRNA species are most abundant in the viral tRNA population. These tRNAs have been… (More)
The roles of the human immunodeficiency virus precursor polyproteins Pr55gag and Pr160gag-pol in viral core assembly were studied in CMT3-COS cells. To do this, the precursors were expressed… (More)
Although most reports defining the human immunodeficiency virus type 1 (HIV-1) genomic RNA packaging signal have focused on the region downstream of the major 5' splice site, others have suggested… (More)
Alternative splicing is a key factor contributing to genetic diversity and evolution. Intron retention, one form of alternative splicing, is common in plants but rare in higher eukaryotes, because… (More)
The Wilms' tumor 1 (WT1) gene plays an important role in mammalian urogenital development, and dysregulation of this gene is observed in many human cancers. Alternative splicing of WT1 RNA leads to… (More)
TAP, the human homologue of the yeast protein Mex67p, has been proposed to serve a role in mRNA export in mammalian cells. We have examined the ability of TAP to mediate export of Rev response… (More)