Results 61 to 70 of about 218,555 (316)

Direct pairing of homologous DNA double helices may involve the B-to-C form transition [PDF]

arXiv, 2022
In many organisms, homologous (or repetitive) chromosomal regions can associate or/and undergo concerted epigenetic changes in the absence of DNA breakage and recombination. The direct specific pairing of DNA duplexes with similar nucleotide sequences represents an attractive mechanism for recognizing such regions. Whereas the pairing of B-DNA duplexes
arxiv  

Guidelines for identifying homologous recombination events in influenza A virus. [PDF]

PLoS ONE, 2010
The rapid evolution of influenza viruses occurs both clonally and non-clonally through a variety of genetic mechanisms and selection pressures. The non-clonal evolution of influenza viruses comprises relatively frequent reassortment among gene segments ...
Maciej F Boni, Menno D de Jong, H Rogier van Doorn, Edward C Holmes   +3 more
doaj   +1 more source

Analysis of comprehensive genomic profiling of solid tumors with a novel assay for broad analysis in clinical diagnostics

Molecular Oncology, EarlyView.
In molecular cancer diagnostics, comprehensive genomic profiling (CGP) is going to replace the small NGS panels since it provides all clinically relevant somatic variants as well as genomic biomarkers with clinical value. Here, we compared two CGP assays and demonstrate that the choice for diagnostic implementation will depend on the specific ...
Guy Froyen, Pieter‐Jan Volders, Ellen Geerdens, Severine Berden, Joni Van der Meulen, Aaron De Cock, Stefanie Vermeire, Jacques Van Huysse, Marie de Barsy, Gabriela Beniuga, Wendy W. J. de Leng, Anne M. L. Jansen, Imke Demers, Zeliha Ozgur, Hendrikus Jan Dubbink, Ernst‐Jan M. Speel, Wilfred F. J. van IJcken, Brigitte Maes   +17 more
wiley   +1 more source

On the Mechanism of Homology Search by RecA Protein Filaments [PDF]

, 2016
Genetic stability is a key factor in maintaining, survival and reproduction of biological cells. It relies on many processes, but one of the most important is a {\it homologous recombination}, in which the repair of breaks in double-stranded DNA molecules is taking place with a help of several specific proteins. In bacteria this task is accomplished by
arxiv   +1 more source

Assembly and dynamics of the bacteriophage T4 homologous recombination machinery

Virology Journal, 2010
Homologous recombination (HR), a process involving the physical exchange of strands between homologous or nearly homologous DNA molecules, is critical for maintaining the genetic diversity and genome stability of species.
Morrical Scott W, Liu Jie
doaj   +1 more source

Adverse prognosis gene expression patterns in metastatic castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
We aggregated a cohort of 1012 mCRPC tissue samples from 769 patients and investigated the association of gene expression‐based pathways with clinical outcomes. Loss of AR signaling, high proliferation, and a glycolytic phenotype were independently prognostic for poor outcomes, and an adverse transcriptional feature score incorporating these pathways ...
Marina N. Sharifi, Eric Feng, Nicholas R. Rydzewski, Amy K. Taylor, Jamie M. Sperger, Yue Shi, Kyle T. Helzer, Matthew L. Bootsma, Viridiana Carreno, Alex H. Chang, Luke A. Nunamaker, Grace C. Blitzer, Tianfu Andy Shang, Aishwarya Subramanian, Anders Bjartell, Andreas Josefsson, Pernilla Wikström, Emily Feng, Manish Kohli, Rendong Yang, Scott M. Dehm, Eric J. Small, Rahul Aggarwal, David A. Quigley, Joshua M. Lang, Shuang G. Zhao, Martin Sjöström   +26 more
wiley   +1 more source

How germline genes promote malignancy in cancer cells

BioEssays, Volume 45, Issue 1, January 2023., 2023
We hypothesize that activation of a “germline program” promotes oncogenesis. Expression of otherwise germline specific genes may result in pseudomeiotic activity, thereby promoting oncogenesis through genomic instability. Other processes that are differentially regulated in the germline, such as migration and epigenetic – and metabolic plasticity, may ...
Jan Willem Bruggeman, Jan Koster, Ans M. M. van Pelt, Dave Speijer, Geert Hamer   +4 more
wiley   +1 more source

Germline variants in CDKN2A wild‐type melanoma prone families

Molecular Oncology, EarlyView.
Among melanoma‐prone families, wild‐type for CDKN2A and CDK4, some have pathogenic variants in genes not usually linked to melanoma. Furthermore, rare XP‐related variants and variants in MC1R are enriched in such families. Germline pathogenic variants in CDKN2A are well established as an underlying cause of familial malignant melanoma. While pathogenic
Gjertrud T. Iversen, Marie Loeng, Amalie Lund Holth, Per E. Lønning, Jürgen Geisler, Stian Knappskog   +5 more
wiley   +1 more source

Transcription‐independent functions of p53 in DNA repair pathway selection

BioEssays, Volume 45, Issue 1, January 2023., 2023
Transcription‐independent early recruitment and PARylation of p53 at DNA damage sites promotes the recruitment of particular repair factors (e.g. DDB1 and 53BP1) and thereby tipping the balance of repair pathway selection. Abstract Recently discovered transcription‐independent features of p53 involve the choice of DNA damage repair pathway after ...
Yu‐Hsiu Wang, Michael P. Sheetz
wiley   +1 more source

Role of HIV RNA structure in recombination and speciation: romping in purine A, keeps HTLV away [PDF]

Microbes and Infection (2014) 16, 96-103, 2013
Extreme enrichment of the human immunodeficiency virus (HIV-1) RNA genome for the purine A parallels the mild purine-loading of the RNAs of most organisms. This should militate against loop-loop "kissing" interactions between the structured viral genome and structured host RNAs, which can generate segments of double-stranded RNA sufficient to trigger ...
arxiv   +1 more source