Results 71 to 80 of about 31,694 (314)

Mechanistic modelling of a recombinase-based two-input temporal logic gate [PDF]

, 2017
Site-specific recombinases (SSRs) mediate efficient manipulation of DNA sequences in vitro and in vivo. In particular, serine integrases have been identified as highly effective tools for facilitating DNA inversion, enabling the design of genetic ...
Bates, Declan, Bowyer, Jack E., Hsiao, Victoria, Wong, Wilson W.   +3 more
core   +1 more source

Delivery of Islatravir via High Drug‐Load, Long‐acting Microarray Patches for the Prevention or Treatment of Human Immunodeficiency Virus

Advanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.
Islatravir‐loaded dissolving microarray patches (MAPs) provide a minimally invasive, long‐acting solution for HIV‐1 prevention and treatment. In rats, sustained islatravir delivery lasts up to three months, while in minipigs, efficacious plasma levels are detected for six days.
Qonita Kurnia Anjani, Ashley R. Johnson, Akmal H. Sabri, Ryan Lutz, Steven Tignor, Jeanine Ballard, Nathan Rudd, Li Zhao, Lalitkumar K. Vora, Stephanie E. Barrett, Angela Wagner, Ryan F. Donnelly   +11 more
wiley   +1 more source

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

Unraveling the genomic mosaic of a ubiquitous genus of marine cyanobacteria [PDF]

, 2008
Background: The picocyanobacterial genus Synechococcus occurs over wide oceanic expanses, having colonized most available niches in the photic zone. Large scale distribution patterns of the different Synechococcus clades (based on 16S rRNA gene markers)
de Marsac, Nicole Tandeau, Dossat, Carole, Dufresne, Alexis, Ferriera, Steve, Garczarek, Laurence, Hess, Wolfgang R, Johnson, Justin, Mazard, Sophie, Ostrowski, Martin, Palenik, Brian P, Partensky, Frédéric, Paulsen, Ian T, Post, Anton F, Scanlan, David J, Wincker, Patrick   +14 more
core   +5 more sources

Direct Access to α,β‐Unsaturated γ‐Lactams via Palladium‐Catalysed Carbonylation of Propargylic Ureas.

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, Aleksandr Voronov, Francesco Pancrazzi, Nunzio Iraci, Salvatore Vincenzo Giofrè, Beatrice Macchi, Valeria Stefanizzi, Raffaella Mancuso, Bartolo Gabriele, Paolo Pio Mazzeo, Luca Capaldo, Nicola Della Ca'   +11 more
wiley   +1 more source

HIV-1 Integrase Strand Transfer Inhibitors with Reduced Susceptibility to Drug Resistant Mutant Integrases

ACS Chemical Biology, 2016
HIV integrase (IN) strand transfer inhibitors (INSTIs) are among the newest anti-AIDS drugs; however, mutant forms of IN can confer resistance. We developed noncytotoxic naphthyridine-containing INSTIs that retain low nanomolar IC50 values against HIV-1 ...
X. Zhao, Steven J. Smith, D. Maskell, M. Métifiot, V. E. Pye, Katherine Fesen, C. Marchand, Y. Pommier, P. Cherepanov, S. Hughes, T. Burke   +10 more
semanticscholar   +1 more source

A simplified mathematical model of directional DNA site-specific recombination by serine integrases

Journal of the Royal Society Interface, 2017
Serine integrases catalyse site-specific recombination to integrate and excise bacteriophage genomes into and out of their host's genome. These enzymes exhibit remarkable directionality; in the presence of the integrase alone, recombination between attP ...
A. Pokhilko, Jia Zhao, W. Stark, S. Colloms, O. Ebenhöh   +4 more
semanticscholar   +1 more source

Multiple choices for HIV therapy with integrase strand transfer inhibitors

Retrovirology, 2012
Two integrases inhibitors, raltegravir and elvitegravir, have now been approved by regulatory agencies for use in the treatment of HIV-infected patients; and the approval of a third such drug, dolutegravir, is expected during 2013 on the basis of several
Raffi Francois, Wainberg Mark A
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, Lidia Araújo-Bazán, Álvaro de la Gándara, James M. Berger, Ernesto Arias-Palomo   +4 more
doaj   +1 more source

Insights into the Dynamics and Binding Mechanisms of the Alkhumra Virus NS2B/NS3 Protease: A Molecular Dynamics Study

Advanced Theory and Simulations, EarlyView.
The ΔRMSF$\Delta {\rm RMSF}$ analysis reveals significant flexibility differences between free NS3 and the NS2B/NS3 complex, with notable deviations in specific regions. Key residues driving NS2B binding are identified, and the protonation state of catalytic serine affects oxyanion hole formation.
Jurica Novak, Shivananda Kandagalla, Ramesh Sistla   +2 more
wiley   +1 more source