Results 21 to 30 of about 399,425 (291)

Identifying Selections Operating on HIV-1 Reverse Transcriptase via Uniform Manifold Approximation and Projection [PDF]

open access: yesarXiv, 2022
We analyze 14,651 HIV1 reverse transcriptase (HIV RT) sequences from the Stanford HIV Drug Resistance Database labeled with treatment regimen in order to study the evolution this enzyme under drug selection in the clinic. Our goal is to identify distinct sectors of HIV RT's sequence space that are undergoing evolution as a way to identify individual ...
arxiv  

Optimal control of a delayed HIV model [PDF]

open access: yesDiscrete Contin. Dyn. Syst. Ser. B 23 (2018), no. 1, 443--458, 2017
We propose a model for the human immunodeficiency virus type 1 (HIV-1) infection with intracellular delay and prove the local asymptotical stability of the equilibrium points. Then we introduce a control function representing the efficiency of reverse transcriptase inhibitors and consider the pharmacological delay associated to the control. Finally, we
arxiv   +1 more source

Endogenous Reverse Transcriptase Inhibition Attenuates TLR5-Mediated Inflammation

open access: yesmBio, 2023
Transposable elements (TEs) are mobile genomic sequences that encompass roughly 50% of the human genome. Class 1 TEs, or “retrotransposons,” mobilize through the production of an RNA intermediate that is then reverse transcribed to form complementary DNA
Nicholas Dopkins   +7 more
doaj   +1 more source

Automated diagnosis of COVID-19 with limited posteroanterior chest X-ray images using fine-tuned deep neural networks [PDF]

open access: yesAppl Intell (2020), 2020
The novel coronavirus 2019 (COVID-19) is a respiratory syndrome that resembles pneumonia. The current diagnostic procedure of COVID-19 follows reverse-transcriptase polymerase chain reaction (RT-PCR) based approach which however is less sensitive to identify the virus at the initial stage.
arxiv   +1 more source

CDK1 dependent phosphorylation of hTERT contributes to cancer progression

open access: yesNature Communications, 2020
Regulated telomerase reverse transcriptase (hTERT) activity is common in human tumors. Here, the authors show that hTERT is phosphorylated by CDK1 and that this event is necessary for hTERT-mediated RNA dependent RNA polymerase activity but not for ...
Mami Yasukawa   +18 more
doaj   +1 more source

The Molecular Docking of Specific Reverse Transcriptase Inhibitory Ligands onto the Molecular Model of HIV-1 Reverse Transcriptase [PDF]

open access: yesTrends in Pharmaceutical Sciences
HIV-1 reverse transcriptase (RT) is a crucial enzyme in HIV replication and AIDS progression. It consists of p66 and p51 subunits and converts viral RNA into double-stranded DNA for integration into the host cell's genome.
Roohallah Yousefi
doaj   +1 more source

Relevance of micrometastases detected by reverse transcriptase-polymerase chain reaction for melanoma recurrence: systematic review and meta-analysis

open access: yesSão Paulo Medical Journal
CONTEXT: Cutaneous melanoma presents significant morbidity and mortality. Nowadays, about 90% of them are diagnosed by clinical examination and most are localized melanomas.
Allisson Monteiro da Silva   +3 more
doaj   +1 more source

Small Dumbbell Oligonucleotides Inhibitors of RNase H Activity of MOMULV Reverse Transcriptase

open access: yesE-Journal of Chemistry, 2011
The small dumbbell oligonucleotides containing loops of phosphodiester (OL-1), two trimethylene, C3 moieties in each loop (OL-2) and phosphorothioate (OL-3) linkages were synthesized.
Ajay Kumar
doaj   +1 more source

Reverse Transcriptase and Cellular Factors: Regulators of HIV-1 Reverse Transcription

open access: yesViruses, 2009
There is ample evidence that synthesis of HIV-1 proviral DNA from the viral RNA genome during reverse transcription requires host factors. However, only a few cellular proteins have been described in detail that affect reverse transcription and interact ...
David Harrich   +3 more
doaj   +1 more source

Early Diagnostic Prediction of Covid-19 using Gradient-Boosting Machine Model [PDF]

open access: yesarXiv, 2021
With the huge spike in the COVID-19 cases across the globe and reverse transcriptase-polymerase chain reaction (RT-PCR) test remains a key component for rapid and accurate detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In recent months there has been an acute shortage of medical supplies in developing countries, especially a
arxiv  

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