Cell-Penetrating Peptide Conjugates Of Peptide Nucleic Acids (Pna) As Inhibitors Of Hiv-1 Tat-Dependent Trans-Activation In Cells

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Issue:

Science

 

Written by:

Sandra J

 

Date added:

October 18, 2010

 

Level:

University

 

Grade:

B

 

No of pages / words:

2 / 310

 

Was viewed:

3136 times

 

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Essay content:

Revised November 14, 2005. Accepted November 14, 2005. The trans-activation response (TAR) RNA stem–loop that occurs at the 5' end of HIV RNA transcripts is an important antiviral target and is the site of interaction of the HIV-1 Tat protein together with host cellular factors. Oligonucleotides and their analogues targeted to TAR are potential antiviral candidates...
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Oligonucleotides and their analogues targeted to TAR are potential antiviral candidates. We have investigated a range of cell penetrating peptide (CPP) conjugates of a 16mer peptide nucleic acid (PNA) analogue targeted to the apical stem–loop of TAR and show that disulfide-linked PNA conjugates of two types of CPP (Transportan or a novel chimeric peptide R6-Penetratin) exhibit dose-dependent inhibition of Tat-dependent trans-activation in a HeLa cell assay when incubated for 24 h...
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