Preventing the formation of positive transcription elongation factor b by human cyclin T1-binding RNA aptamer for anti-HIV transcription

AIDS
Hyun-Ju UmYang-Hoon Kim

Abstract

Development of an innovative antitranscriptional technique for HIV. Systematic evolution of ligands by exponential enrichment (SELEX) technique that can characterize target-specific aptamer was employed to synthesize an aptamer that binds human cyclin T1 (CycT1). When CycT1-binding aptamer interferes the binding of cyclin-dependent kinase 9 (Cdk9) to CycT1, HIV transcription is likely to be discouraged. Throughout SELEX steps, RNA aptamers having high specific affinity toward CycT1 were characterized. The binding interaction between selected aptamers and CycT1 was analyzed via various techniques. Both qualitative and quantitative analyses revealed Apt4 aptamer, among four candidates, has the highest specific affinity to CycT1. In the presence of Apt4, Cdk9 protein was unable to make interaction with CycT1. A specific RNA aptamer that identifies and binds to CycT1 with high affinity was successfully characterized. As CycT1 plays an important role in HIV transcription, this novel method that interferes and inhibits the transcription of HIV has the potential of being exploited in extended research fields, such as clinical therapy.

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Citations

Mar 18, 2016·The Protein Journal·Maryam Tabarzad, Marzieh Jafari
Jan 16, 2015·Biosensors & Bioelectronics·Sang-Hee LeeYang-Hoon Kim
Feb 9, 2017·Nanoscale·Simranjeet Singh SekhonYang-Hoon Kim
May 23, 2017·Nanoscale·Simranjeet Singh SekhonYang-Hoon Kim
Aug 11, 2015·Critical Reviews in Microbiology·Anna DavydovaAlya Venyaminova
Jul 25, 2019·Frontiers in Microbiology·Xinran ZouLingxiang Mao
May 1, 2021·International Journal of Molecular Sciences·Tae-Hyeong Kim, Seong-Wook Lee
Aug 2, 2021·Molecular Aspects of Medicine·Manish PandeyGeetanjali Chawla
Mar 20, 2018·ACS Combinatorial Science·Woo-Ri ShinYang-Hoon Kim

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