Results 61 to 70 of about 18,910 (292)
A Family of Developmentally Excised DNA Elements in \u3cem\u3eTetrahymena\u3c/em\u3e is under Selective Pressure to Maintain an Open Reading Frame Encoding an Integrase-Like Protein [PDF]
, 2000 Tlr1 is a member of a family of ~20-30 DNA elements that undergo developmentally regulated excision during formation of the macronucleus in the ciliated protozoan Tetrahymena.
Gershan, Jill A., Karrer, Kathleen M.
core +1 more source
Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.Abstract Additive carbonylations typically necessitate strong nucleophiles, such as alcohols or amines. In this study, we carbonylated a poorly nucleophilic urea, under oxidant‐free conditions. Our straightforward carbonylative strategy enables access to versatile α,β‐unsaturated γ‐lactams featuring an aminocarbonyl fragment, utilizing readily ...
Debora Schiroli +11 more
wiley +1 more source
Nature Communications, 2016 The integron integrases have evolved to perform recombination of single and double stranded DNA. Here the authors show that the ancestral pathway is still functional at double stranded sites, revealing the evolution towards the modern resolution pathway.
Jose Antonio Escudero +5 more
doaj +1 more source
IS21 family transposase cleaved donor complex traps two right-handed superhelical crossings
Nature Communications, 2023 Transposases are ubiquitous enzymes that catalyze DNA rearrangement events with broad impacts on gene expression, genome evolution, and the spread of drug-resistance in bacteria.
Mercedes Spínola-Amilibia +4 more
doaj +1 more source
Genetic Engineering Methods in Primary T Cells
Advanced Therapeutics, EarlyView.Primary T cells can be engineered to confer them with novel therapeutic functions, allowing them to treat a variety of conditions. Genetic engineering can be either stable or transient, aiming to either express or inhibit a target gene. This review discusses the various genetic engineering tools available as well as their characteristics and ...
Anthony Youssef, Hui‐Shan Li
wiley +1 more source
eLife, 2020 Molecular examples of evolutionary innovation are scarce and generally involve point mutations. Innovation can occur through larger rearrangements, but here experimental data is extremely limited.
José Antonio Escudero +5 more
doaj +1 more source
RAG-1 Mutations Associated with B-Cell-Negative SCID Dissociate the Nicking and Transesterification Steps of V(D)J Recombination [PDF]
, 2001 Some patients with B-cell-negative severe combined immune deficiency (SCID) carry mutations in RAG-1 or RAG-2 that impair V(D)J recombination. Two recessive RAG-1 mutations responsible for B-cell-negative SCID, R621H and E719K, impair V(D)J recombination
Chang, Fu-Chung +2 more
core +2 more sources
Advanced Science, Volume 12, Issue 28, July 24, 2025.CRISPR/Cas9, while transformative, faces challenges in specificity, precision, delivery, accessibility, flexibility, and safety. This review addresses these limitations by highlighting strategies to reduce off‐target effects, exploring HDR‐based and alternative editing approaches, and evaluating advanced delivery mechanisms.
Muna Alariqi +8 more
wiley +1 more source
Effect of
Mobile DNA, 2011 Background Integrons are genetic elements able to integrate and disseminate genes as cassettes by a site-specific recombination mechanism. These elements contain a gene coding for an integrase that carries out recombination by interacting with two ...
Larouche André, Roy Paul H
doaj +1 more source
eLife, 2020 Key to CRISPR-Cas adaptive immunity is maintaining an ongoing record of invading nucleic acids, a process carried out by the Cas1-Cas2 complex that integrates short segments of foreign genetic material (spacers) into the CRISPR locus.
Alison B Hickman +4 more
doaj +1 more source