Results 71 to 80 of about 773,827 (377)

Altering symplectic manifolds by homologous recombination [PDF]

open access: yes, 2010
We use symplectic cohomology to study the non-uniqueness of symplectic structures on the smooth manifolds underlying affine varieties. Starting with a Lefschetz fibration on such a variety and a finite set of primes, the main new tool is a method, which ...
Abouzaid, Mohammed, Seidel, Paul
core  

On a break with the X: the role of repair of double-stranded DNA breaks in X-linked disease [PDF]

open access: yes, 2012
The problem of managing free reactive DNA ends in eukaryotic cells has resulted in the development of a number of mechanisms in order to ensure that free ends are rendered non-reactive, or that the double-strand DNA breaks generating the free ends are ...
Cecceroni, Lucia   +2 more
core   +3 more sources

Multi‐omic characterization of consensus molecular subtype 1 (CMS1) colorectal cancer with dampened immune response improves precision medicine

open access: yesMolecular Oncology, EarlyView.
This study highlights the importance of multi‐omic analyses in characterizing colorectal cancers. Indeed, our analysis revealed a rare CMS1 exhibiting dampened immune activation, including reduced PD‐1 expression, moderate CD8+ T‐cell infiltration, and suppressed JAK/STAT pathway.
Livia Concetti   +10 more
wiley   +1 more source

Variation in RAD51 details a hub of functions: opportunities to advance cancer diagnosis and therapy [version 1; referees: 4 approved]

open access: yesF1000Research, 2018
Loss of genome stability is one of the hallmarks of the enabling characteristics of cancer development. Homologous recombination is a DNA repair process that often breaks down as a prelude to developing cancer. Conversely, homologous recombination can be
Nick LL van der Zon   +2 more
doaj   +1 more source

Targeted recombination of homologous chromosomes using CRISPR‐Cas9

open access: yesFEBS Open Bio, 2023
CRISPR mutagenesis is an efficient way to disrupt specific target genes in many model organisms. We previously devised a targeted CRISPR recombination method to generate intragenic recombinants of alleles in Drosophila.
Wonseok Son, Ki Wha Chung
doaj   +1 more source

DNA DSB repair pathway choice: an orchestrated handover mechanism [PDF]

open access: yes, 2014
DNA double strand breaks (DSBs) are potential lethal lesions but can also lead to chromosome rearrangements, a step promoting carcinogenesis. DNA non-homologous end-joining (NHEJ) is the major DSB rejoining process and occurs in all cell cycle stages ...
A Kakarougkas   +5 more
core   +1 more source

Gene gain and loss push prokaryotes beyond the homologous recombination barrier and accelerate genome sequence divergence

open access: yesNature Communications, 2019
Bacterial and archaeal evolution involve extensive gene gain and loss. Thus, phylogenetic trees of prokaryotes can be constructed both by traditional sequence-based methods (gene trees) and by comparison of gene compositions (genome trees). Comparing the
J. Iranzo, Y. Wolf, E. Koonin, I. Sela
semanticscholar   +1 more source

Regulation of Homologous Recombination in Eukaryotes [PDF]

open access: yesAnnual Review of Genetics, 2010
Homologous recombination (HR) is required for accurate chromosome segregation during the first meiotic division and constitutes a key repair and tolerance pathway for complex DNA damage, including DNA double-strand breaks, interstrand crosslinks, and DNA gaps.
Wolf Dietrich Heyer   +2 more
openaire   +3 more sources

Chemoresistome mapping in individual breast cancer patients unravels diversity in dynamic transcriptional adaptation

open access: yesMolecular Oncology, EarlyView.
This study used longitudinal transcriptomics and gene‐pattern classification to uncover patient‐specific mechanisms of chemotherapy resistance in breast cancer. Findings reveal preexisting drug‐tolerant states in primary tumors and diverse gene rewiring patterns across patients, converging on a few dysregulated functional modules. Despite receiving the
Maya Dadiani   +14 more
wiley   +1 more source

Variation in RAD51 details a hub of functions: opportunities to advance cancer diagnosis and therapy [version 2; referees: 4 approved]

open access: yesF1000Research, 2018
Loss of genome stability is one of the hallmarks of the enabling characteristics of cancer development. Homologous recombination is a DNA repair process that often breaks down as a prelude to developing cancer. Conversely, homologous recombination can be
Nick LL van der Zon   +2 more
doaj   +1 more source

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