Results 21 to 30 of about 1,185,258 (299)

Efficient support of virus-like particle assembly by the HIV-1 packaging signal

eLife, 2018
The principal structural component of a retrovirus particle is the Gag protein. Retroviral genomic RNAs contain a ‘packaging signal’ (‘Ψ') and are packaged in virus particles with very high selectivity.
Mauricio Comas-Garcia, Tomas Kroupa, Siddhartha AK Datta, Demetria P Harvin, Wei-Shau Hu, Alan Rein   +5 more
doaj   +1 more source

Transcription Start Site Heterogeneity and Preferential Packaging of Specific Full-Length RNA Species Are Conserved Features of Primate Lentiviruses

Microbiology Spectrum, 2022
HIV-1 must package its RNA genome to generate infectious viruses. Recent studies have revealed that during genome packaging, HIV-1 not only excludes cellular mRNAs, but also distinguishes among full-length viral RNAs. Using NL4-3 and MAL molecular clones,
Jonathan M. O. Rawson, Olga A. Nikolaitchik, Saurabh Shakya, Brandon F. Keele, Vinay K. Pathak, Wei-Shau Hu   +5 more
doaj   +1 more source

Mechanistic Analysis of the Broad Antiretroviral Resistance Conferred by HIV-1 Envelope Glycoprotein Mutations

mBio, 2021
Although combination antiretroviral (ARV) therapy is highly effective in controlling the progression of HIV disease, drug resistance can be a major obstacle. Recent findings suggest that resistance can develop without ARV target gene mutations.
Yuta Hikichi, Rachel Van Duyne, Phuong Pham, Jennifer L. Groebner, Ann Wiegand, John W. Mellors, Mary F. Kearney, Eric O. Freed   +7 more
doaj   +1 more source

Optimistic replication [PDF]

ACM Computing Surveys, 2005
Data replication is a key technology in distributed systems that enables higher availability and performance. This article surveys optimistic replication algorithms. They allow replica contents to diverge in the short term to support concurrent work practices and tolerate failures in low-quality communication links. The importance of such techniques is
Saito, Yasushi, Shapiro, Marc
openaire   +3 more sources

Impact of Nuclear Export Pathway on Cytoplasmic HIV-1 RNA Transport Mechanism and Distribution

mBio, 2020
HIV-1 full-length RNA (referred to as HIV-1 RNA here) serves as the viral genome in virions and as a template for Gag/Gag-Pol translation. We previously showed that HIV-1 RNA, which is exported via the CRM1 pathway, travels in the cytoplasm mainly ...
Jianbo Chen, Chijioke Umunnakwe, David Q. Sun, Olga A. Nikolaitchik, Vinay K. Pathak, Ben Berkhout, Atze T. Das, Wei-Shau Hu   +7 more
doaj   +1 more source

What is replication?

PLOS Biology, 2019
Credibility of scientific claims is established with evidence for their replicability using new data. According to common understanding, replication is repeating a study’s procedure and observing whether the prior finding recurs. This definition is intuitive, easy to apply, and incorrect.
Brian A. Nosek, Brian A. Nosek, Timothy M. Errington   +2 more
openaire   +6 more sources

Attenuation of reverse transcriptase facilitates SAMHD1 restriction of HIV-1 in cycling cells

Retrovirology, 2023
Background SAMHD1 is a deoxynucleotide triphosphohydrolase that restricts replication of HIV-1 in differentiated leucocytes. HIV-1 is not restricted in cycling cells and it has been proposed that this is due to phosphorylation of SAMHD1 at T592 in these ...
Ming-Han C. Tsai, Sarah J. Caswell, Elizabeth R. Morris, Melanie C. Mann, Simon Pennell, Geoff Kelly, Harriet C. T. Groom, Ian A. Taylor, Kate N. Bishop   +8 more
doaj   +1 more source

Robust Replication Control Is Generated by Temporal Gaps between Licensing and Firing Phases and Depends on Degradation of Firing Factor Sld2

Cell Reports, 2016
Temporal separation of DNA replication initiation into licensing and firing phases ensures the precise duplication of the genome during each cell cycle.
Karl-Uwe Reusswig, Fabian Zimmermann, Lorenzo Galanti, Boris Pfander   +3 more
doaj   +1 more source

Does the Cytoplasmic Tail Matter? Mechanism of Viral Envelope Glycoprotein Targeting by Membrane-Associated-RING-CH (MARCH) Proteins

Proceedings, 2020
The MARCH family of RING-finger E3 ubiquitin ligases comprise 11 members that have been reported to play a variety of roles in the downregulation of cell-surface proteins involved in adaptive immunity.
Cheng man Lun, Abdul A. Waheed, Eric O. Freed   +2 more
doaj   +1 more source

HIV-1 Capsid Rapidly Induces Long-Lived CPSF6 Puncta in Non-Dividing Cells, but Similar Puncta Already Exist in Uninfected T-Cells

Viruses
The HIV-1 capsid (CA) protein forms the outer shell of the viral core that is released into the cytoplasm upon infection. CA binds various cellular proteins, including CPSF6, that direct HIV-1 integration into speckle-associated domains in host chromatin.
Anabel Guedán, Megan Burley, Eve R. Caroe, Kate N. Bishop   +3 more
doaj   +1 more source