Key result
Rec function requires binding to a complex, folded RNA structure involving four essential stem-loop structures within the RcRE, rather than a discrete specific binding site.
Population
Human endogenous retrovirus HTDV/HERV-K transcripts and Rec protein
Comparison
Mutational analysis of the Rec-responsive element vs Rev (HIV) and Rex (HTLV-1) proteins
Design
Preclinical
Authors
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Distinguishes Rec-RcRE interaction from Rev/Rex; leaves open whether this structure is a druggable target in HERV-K disease.
The study demonstrates that the HTDV/HERV-K Rec protein requires a complex folded RNA structure for function, distinguishing its binding mechanism from homologous retroviral export proteins Rev and Rex.
Magin-Lachmann et al. (2001) studied HTDV/HERV-K retrovirus RNA export. Rec protein and RcRE mutations vs. Wild-type RcRE (pcK30) was evaluated on Nuclear export of HIV Gag reporter RNA (measured by p24 levels). Rec function requires binding to a complex, folded RNA structure involving four essential stem-loop structures within the RcRE, rather than a discrete specific binding site.
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