Results 51 to 60 of about 348,739 (321)
Rad27/FEN1 prevents accumulation of Okazaki fragments and ribosomal DNA copy number changes
FEBS Letters, EarlyView.The budding yeast Rad27 is a structure‐specific endonuclease. Here, the authors reveal that Rad27 is crucial for maintaining the stability of the ribosomal RNA gene (rDNA) region. Rad27 deficiency leads to the accumulation of Okazaki fragments and changes in rDNA copy number.
Tsugumi Yamaji +3 more
wiley +1 more source
MicroorganismsThe precise editing of genes mediated by CRISPR-Cas9 necessitates the application of donor DNA with appropriate lengths of homologous arms and fragment sizes.
Ran Chai +7 more
doaj +1 more source
On a break with the X: the role of repair of double-stranded DNA breaks in X-linked disease [PDF]
, 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 +4 more sources
The role of histone modifications in transcription regulation upon DNA damage
FEBS Letters, EarlyView.This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley +1 more source
RAPID SOUTHERN BLOT PROTOCOL FOR THE ANALYSIS OF TARGETED MUTAGENESIS IN THE MOUSE IGHG1 LOCUS
Scientific Papers Animal Science and Biotechnologies, 2023 The efficiency of homologous recombination relies on the lenght of the homology arms and the chromatin compactation of the locus. In ES cells the immuoglobulin locu is compacted. Thus, the homologous recombination events occur at a very low frequency.
ALENA A. BENCSIK +3 more
doaj
Altering symplectic manifolds by homologous recombination [PDF]
, 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
Antigenic variation in the African trypanosome: molecular mechanisms and phenotypic complexity [PDF]
, 2009 Antigenic variation is an immune evasion strategy that has evolved in viral, bacterial and protistan pathogens. In the African trypanosome this involves stochastic switches in the composition of a variant surface glycoprotein (VSG) coat, using a massive ...
Marcello, Lucio +2 more
core +1 more source
Dependence of frequency of homologous recombination on the homology length. [PDF]
Genetics, 1995 Abstract The frequency of homologous recombination is believed to be a linear function of the length (N bp) of homology between DNAs. Here, the N intercept is believed to be determined by a threshold length below which some physical constraint is effective.
Y, Fujitani, K, Yamamoto, I, Kobayashi
openaire +3 more sources
β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1
Molecular Oncology, EarlyView.Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero +8 more
wiley +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