Results 81 to 90 of about 11,679 (258)

Epigenetic heterogeneity and plasticity in therapy‐induced tumor states through single‐cell multi‐omics

Molecular Oncology, EarlyView.
Single‐cell multi‐omics reveals epigenetic heterogeneity across therapy‐adaptive tumor states, including quiescent/dormant, drug‐tolerant persister, and EMT‐like phenotypes. By linking regulatory features with state‐associated biomarkers, these approaches inform biomarker‐guided therapeutic strategies for evolving tumors.
Hee Jung Kim, Hwiyeong Lee, Jin Hong, Daechan Park   +3 more
wiley   +1 more source

Mechanisms for human genomic rearrangements [PDF]

PathoGenetics, 2008
Abstract Genomic rearrangements describe gross DNA changes of the size ranging from a couple of hundred base pairs, the size of an average exon, to megabases (Mb). When greater than 3 to 5 Mb, such changes are usually visible microscopically by chromosome studies. Human diseases that result from genomic rearrangements have been called genomic
Gu, Wenli, Zhang, Feng, Lupski, James R
openaire   +2 more sources

RNA-Mediated Epigenetic Programming of Genome Rearrangements

, 2011
RNA, normally thought of as a conduit in gene expression, has a novel mode of action in ciliated protozoa. Maternal RNA templates provide both an organizing guide for DNA rearrangements and a template that can transport somatic mutations to the next ...
Nowacki, Mariusz, Landweber, Laura F., Keerthi Shetty, Mariusz Nowacki, Shetty, Keerthi, Laura F. Landweber   +5 more
core   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

A model for rearrangements in RNA genomes

Nucleic Acids Research, 1995
Engineered mutants of Theiler's murine encephalomyelitis virus (TMEV) and poliovirus having altered spacing between the oligopyrimidine and AUG moieties of a translational control element are known to generate pseudorevertants with deletions or insertions that tend to restore the wild-type structure of this element.
E V, Pilipenko, A P, Gmyl, V I, Agol
openaire   +3 more sources

Systematic determination of the mosaic structure of bacterial genomes: species backbone versus strain-specific loops [PDF]

, 2005
Background Public databases now contain multitude of complete bacterial genomes, including several genomes of the same species. The available data offers new opportunities to address questions about bacterial genome evolution, a task that requires ...
Petit M-A, El Karoui, Meriem, El Karoui, M, Bourgait, Isabelle, Gendrault-Jacquemard, A, Sourivong, Frédéric, Gendrault, Annie, Gendrault-Jacquemard, Gendrault-Jacquemard A, Chiapello H, Chiapello, H, Sourivong F, Bourgait I, Heuclin G, El Karoui M, El Karoui, Meriem, M., Heuclin, G, Petit, M-A, Bourgait, I, Heuclin, Gaëlle, Chiapello, Helene, Petit, Marie Agnès, Petit, Marie Agnes, M. A., Sourivong, F, Gendrault, Annie   +23 more
core   +1 more source

Mutant NPM1 in Acute Myeloid Leukemia Initiation and Maintenance

Aging and Cancer, EarlyView.
NPM1 mutations drive acute myeloid leukemia by acting as neomorphic transcriptional regulators that cooperate with Menin–MLL and XPO1 to sustain HOX/MEIS1 expression and block differentiation. Targeting these mutant‐specific transcriptional dependencies provides a rational therapeutic strategy for NPM1‐mutated AML.
Yanan Jiang, Zhong Fan, Runmeng Liu, Xiaotian Zhang   +3 more
wiley   +1 more source

The Cohesion complex maintains genome stability by preventing end joining of distant DNA ends in S phase

Molecular & Cellular Oncology, 2018
Genome instability is a hallmark of cancer cells. The joining of distant DNA double-strand ends (DSEs) ineluctably leads to genome rearrangements. We found that the cohesion complex maintains genome stability by repressing the joining of distant DSEs ...
Camille Gelot, Josée Guirouilh-Barbat, Bernard S. Lopez   +2 more
doaj   +1 more source

Large genomic rearrangements in MECP2 [PDF]

Human Mutation, 2005
In 1999, mutations in the X-linked gene methyl-CpG-binding protein 2 (MECP2) were first reported in patients with Rett syndrome (RTT). The MECP2 gene is located at Xq28 and consists of 4 exons. About 80-90 % of the classic RTT patients harbor mutations in the coding region of MECP2, while the molecular cause is unknown in the remaining 10-20%.
Kirstine, Ravn, Jytte Bieber, Nielsen, Ola Husbeth, Skjeldal, Alison, Kerr, Maj, Hulten, Marianne, Schwartz   +5 more
openaire   +2 more sources

Principles of genome evolution in the Drosophila melanogaster species group.

, 2007
That closely related species often differ by chromosomal inversions was discovered by Sturtevant and Plunkett in 1926. Our knowledge of how these inversions originate is still very limited, although a prevailing view is that they are facilitated by ...
Marcin von Grotthuss, Yuk S Chan, José M Ranz, Damien Maurin, Michael Ashburner, Casey M Bergman, LaDeana W Hillier, John Roote   +7 more
core   +1 more source