Results 11 to 20 of about 399,425 (291)

A reverse transcriptase ribozyme

eLife, 2017
A highly evolved RNA polymerase ribozyme was found to also be capable of functioning as a reverse transcriptase, an activity that has never been demonstrated before for RNA. This activity is thought to have been crucial for the transition from RNA to DNA
Biswajit Samanta, Gerald F Joyce
doaj   +1 more source

APOBEC3 selects V179I in HIV-1 reverse transcriptase to provide selective advantage for non-nucleoside reverse transcriptase inhibitor-resistant mutants

Frontiers in Virology, 2022
The V179I substitution in human immunodeficiency virus type 1 (HIV-1) reverse transcriptase (RT) is selected in humans or mouse models treated with certain nonnucleoside reverse transcriptase inhibitors (NNRTIs).
Richa Dwivedi, Youya Wang, Christopher Kline, Douglas K. Fischer, Zandrea Ambrose   +4 more
doaj   +1 more source

In silico prediction of telomerase reverse transcriptase inhibitors using modified retinol for the treatment of arsenical cancer

Bangabandhu Sheikh Mujib Medical University Journal, 2016
Retinol molecule was modified to predict the inhibitors of telomerase reverse transcriptase for the treatment of arsenical cancer through in silico study. Telomerase activity is expressed in the cancerous conditions which can be the target for anticancer
Kipchu Tshering, Mir Misbahuddin
doaj   +1 more source

In vitro and ex vivo inhibition of human telomerase by anti-HIV nucleoside reverse transcriptase inhibitors (NRTIs) but not by non-NRTIs. [PDF]

PLoS ONE, 2012
Telomerase is a specialized reverse transcriptase responsible for the de novo synthesis of telomeric DNA repeats. In addition to its established reverse transcriptase and terminal transferase activities, recent reports have revealed unexpected cellular ...
Kyle R Hukezalie, Naresh R Thumati, Hélène C F Côté, Judy M Y Wong   +3 more
doaj   +1 more source

Time to treatment disruption in children with HIV-1 randomized to initial antiretroviral therapy with protease inhibitors versus non-nucleoside reverse transcriptase inhibitors.

PLoS ONE, 2020
BackgroundChoice of initial antiretroviral therapy regimen may help children with HIV maintain optimal, continuous therapy. We assessed treatment-naïve children for differences in time to treatment disruption across randomly-assigned protease inhibitor ...
Dwight E Yin, Christina Ludema, Stephen R Cole, Carol E Golin, William C Miller, Meredith G Warshaw, Ross E McKinney, PENPACT-1 (PENTA 9 / PACTG 390) Study Team   +7 more
doaj   +1 more source

A Mutagenetic Tree Hidden Markov Model for Longitudinal Clonal HIV Sequence Data [PDF]

Biostatistics 2007, Vol. 8, No. 1, 53-71, 2006
RNA viruses provide prominent examples of measurably evolving populations. In HIV infection, the development of drug resistance is of particular interest, because precise predictions of the outcome of this evolutionary process are a prerequisite for the rational design of antiretroviral treatment protocols.
arxiv   +1 more source

Normal and Tumour Tissue mRNA Expressions of Telomerase Complex Genes in Several Types of Cancer

Balkan Medical Journal, 2017
Aims: To investigate the changes in mRNA expression levels of telomerase-related significant proteins in several types of cancer. Methods: Human telomerase reverse transcriptase, pontin, reptin and dyskerin expressions were measured in normal and tumour
Emel Çalışkan Can, M. Can Atalay, Ece Miser Salihoğlu, Ülkü Yalçıntaş Arslan, H. Bolkan Şimşek, Sevgi Yardım Akaydın   +5 more
doaj   +1 more source

Experience With Pretravel Testing for SARS-CoV-2 at an Academic Medical Center

Academic Pathology, 2021
International travel has been a significant factor in the coronavirus disease 2019 pandemic. Many countries and airlines have implemented travel restrictions to limit the spread of the causative agent, severe acute respiratory syndrome coronavirus-2.
Katherine L. Imborek MD, Matthew D. Krasowski MD, PhD, Paul Natvig MD, Anna E. Merrill PhD, Daniel J. Diekema MD, Bradley A. Ford MD, PhD   +5 more
doaj   +1 more source

High-resolution view of HIV-1 reverse transcriptase initiation complexes and inhibition by NNRTI drugs

Nature Communications, 2021
Initiation of HIV-1 reverse transcription occurs at the host tRNALys 3, which forms a complex with the 5’ end of the HIV-1 viral RNA and reverse transcriptase (RT).
Betty Ha, Kevin P. Larsen, Jingji Zhang, Ziao Fu, Elizabeth Montabana, Lynnette N. Jackson, Dong-Hua Chen, Elisabetta Viani Puglisi   +7 more
doaj   +1 more source

COVID-19 Diagnosed by Real-Time Reverse Transcriptase-Polymerase Chain Reaction in Nasopharyngeal Specimens of Suspected Cases in a Tertiary Care Center: A Descriptive Cross-sectional Study

Journal of Nepal Medical Association, 2021
Introduction: The emergence of severe acute respiratory syndrome coronavirus-2 pandemic is critically challenging the whole world. The real-time reverse transcriptase-polymerase chain reaction is the most widely used confirmatory test for COVID-19 ...
Narayani Maharjan, Niresh Thapa, Bibek Pun Magar, Muna Maharjan, Jiancheng Tu   +4 more
doaj   +1 more source