Results 61 to 70 of about 428,951 (317)

How to recover from a bad start: adaptation of HIV-1 transcription start site mutants during serial passaging in culture

Journal of Virology
HIV-1 uses neighboring sequences as transcription start sites and generates multiple unspliced transcripts, including two major transcripts with three guanosines (3G) or one guanosine (1G) at the 5′ end. Although only differing by 2-nt, 3G RNA and 1G RNA
Olga A. Nikolaitchik, Akhil Chameettachal, Saiful Islam, Zetao Cheng, Krista Delviks-Frankenberry, Brandon F. Keele, Vinay K. Pathak, Wei-Shau Hu   +7 more
doaj   +1 more source

A nucleotide‐independent, pan‐RAS‐targeted DARPin elicits anti‐tumor activity in a multimodal manner

Molecular Oncology, EarlyView.
We report a Designed Ankyrin Repeat Protein that binds and inhibits RAS proteins, which serve as central cell signaling hubs and are essential for the progression of many cancers. Its unique feature is that it does not discriminate between different RAS isoforms or mutations and is capable of binding to RAS in both its active (GTP‐bound) and inactive ...
Jonas N. Kapp, Wouter P. R. Verdurmen, Jonas V. Schaefer, Kari Kopra, Gabriela Nagy‐Davidescu, Elodie Richard, Marie‐Julie Nokin, Patrick Ernst, Rastislav Tamaskovic, Martin Schwill, Ralph Degen, Claudia Scholl, David Santamaria, Andreas Plückthun   +13 more
wiley   +1 more source

Host Cell Nucleolin Is Required To Maintain the Architecture of Human Cytomegalovirus Replication Compartments

mBio, 2012
Drastic reorganization of the nucleus is a hallmark of herpesvirus replication. This reorganization includes the formation of viral replication compartments, the subnuclear structures in which the viral DNA genome is replicated.
Blair L. Strang, Steeve Boulant, Tomas Kirchhausen, Donald M. Coen   +3 more
doaj   +1 more source

Replication Compartments—The Great Survival Strategy for Epstein–Barr Virus Lytic Replication

Microorganisms, 2022
During Epstein–Barr virus (EBV) lytic replication, viral DNA synthesis is carried out in viral replication factories called replication compartments (RCs), which are located at discrete sites in the nucleus.
Atsuko Sugimoto
doaj   +1 more source

BMP antagonist CHRDL2 enhances the cancer stem‐cell phenotype and increases chemotherapy resistance in colorectal cancer

Molecular Oncology, EarlyView.
Overexpression of CHRDL2 in colon cancer cells makes them more stem‐like and resistant to chemo‐ and radiotherapy. CHRDL2‐high cells have upregulation of the WNT pathway, genes involved in the DNA damage response (DDR) pathway and epithelial‐to‐mesenchymal transition (EMT). This leads to quicker repair of damaged DNA and more cell migration.
Eloise Clarkson, Annabelle Lewis
wiley   +1 more source

Discontinuous template switching generates coronavirus subgenomic RNAs from the 3ʹ viral genome end by 5ʹ to 3ʹ transcription

Journal of Virology
In coronavirus (CoV)-infected cells, several structural and accessory proteins are synthesized from subgenome RNAs (sgRNA) containing a common genomic 5ʹ-leader followed by a given open reading frame (ORF).
Ayslan Castro Brant, Zhe Hu, Angelika Zelma Chen, Vladimir Majerciak, Jonathan Yewdell, Zhi-Ming Zheng   +5 more
doaj   +1 more source

Influenza Virus Exploits an Interferon-Independent lncRNA to Preserve Viral RNA Synthesis through Stabilizing Viral RNA Polymerase PB1

Cell Reports, 2019
Summary: Long noncoding RNAs (lncRNAs) participate in host antiviral defense by modulating immune responses. However, it remains largely unexplored how viruses exploit interferon (IFN)-independent host lncRNAs to facilitate viral replication.
Jing Wang, Yongxin Zhang, Quanjie Li, Jianyuan Zhao, Dongrong Yi, Jiwei Ding, Fei Zhao, Siqi Hu, Jinming Zhou, Tao Deng, Xiaoyu Li, Fei Guo, Chen Liang, Shan Cen   +13 more
doaj   +1 more source

Macroautophagy—friend or foe of viral replication? [PDF]

EMBO reports, 2013
Autophagy can either degrade pathogens or promote their replication. Both effects have been reported for Chikungunya virus and a recent study in EMBO reports solves this controversy, whilst indicating how to improve mouse models of the infection.
openaire   +3 more sources

Tumor clusters with divergent inflammation and human retroelement expression determine the clinical outcome of patients with serous ovarian cancer

Molecular Oncology, EarlyView.
Analysis of treatment‐naïve high‐grade serous ovarian carcinoma (HGSOC) and control tissues for ERVs, LINE‐1 (L1), inflammation, and immune checkpoints identified five clusters with diverse patient recurrence‐free survivals. An inflammation score was calculated and correlated with retroelement expression, where one novel cluster (Triple‐I) with high ...
Laura Glossner, Markus Eckstein, Christoph Mark, Matthias W. Beckmann, Arndt Hartmann, Pamela L. Strissel, Reiner Strick   +6 more
wiley   +1 more source

Spatial and functional arrangement of Ebola virus polymerase inside phase-separated viral factories

Nature Communications, 2023
Ebola virus (EBOV) infection induces the formation of membrane-less, cytoplasmic compartments termed viral factories, in which multiple viral proteins gather and coordinate viral transcription, replication, and assembly.
Jingru Fang, Guillaume Castillon, Sebastien Phan, Sara McArdle, Chitra Hariharan, Aiyana Adams, Mark H. Ellisman, Ashok A. Deniz, Erica Ollmann Saphire   +8 more
doaj   +1 more source