Zobrazeno 1 - 10
of 5 997
pro vyhledávání: '"DNA Supercoil"'
Publikováno v:
ALIFE 2021: The 2021 Conference on Artificial Life
ALIFE 2021-Conference on Artificial Life
ALIFE 2021-Conference on Artificial Life, Jul 2021, Prague, Czech Republic
ALIFE 2021: The 2021 Conference on Artificial Life, Jul 2021, Prague, Czech Republic
Artificial Life
Artificial Life, 2022, ⟨10.1162/artl_a_00373⟩
HAL
ALIFE 2021-Conference on Artificial Life
ALIFE 2021-Conference on Artificial Life, Jul 2021, Prague, Czech Republic
ALIFE 2021: The 2021 Conference on Artificial Life, Jul 2021, Prague, Czech Republic
Artificial Life
Artificial Life, 2022, ⟨10.1162/artl_a_00373⟩
HAL
DNA supercoiling, the level of under- or overwinding of the DNA polymer around itself, is widely recognized as an ancestral regulation mechanism of gene expression in bacteria. Higher levels of negative supercoiling facilitate the opening of the DNA
Autor:
Sung Hyun Kim, Mahipal Ganji, Eugene Kim, Jaco van der Torre, Elio Abbondanzieri, Cees Dekker
Publikováno v:
eLife, Vol 7 (2018)
The three-dimensional organization of DNA is increasingly understood to play a decisive role in vital cellular processes. Many studies focus on the role of DNA-packaging proteins, crowding, and confinement in arranging chromatin, but structural infor
Externí odkaz:
https://doaj.org/article/dfb615d3e2d54b08900e241d48082528
Publikováno v:
Nucleic Acids Research
G-quadruplex is an essential element in gene transcription that serves as a promising drug target. Guanine-vacancy-bearing G-quadruplex (GVBQ) is a newly identified G-quadruplex that has distinct structural features from the canonical G-quadruplex. P
Autor:
Jacques Oberto, Ryan J. Catchpole, Tamara Basta, Patrick Forterre, Etienne Villain, Paul Villain, Violette Da Cunha
Publikováno v:
Nucleic Acids Research
Nucleic Acids Research, 2021, 49 (21), pp.12332-12347. ⟨10.1093/nar/gkab869⟩
Nucleic Acids Research, 2021, 49 (21), pp.12332-12347. ⟨10.1093/nar/gkab869⟩
In all cells, DNA topoisomerases dynamically regulate DNA supercoiling allowing essential DNA processes such as transcription and replication to occur. How this complex system emerged in the course of evolution is poorly understood. Intriguingly, a s
Publikováno v:
Nucleic Acids Research
Protein-mediated DNA looping is fundamental to gene regulation and such loops occur stochastically in purified systems. Additional proteins increase the probability of looping, but these probabilities maintain a broad distribution. For example, the p
Publikováno v:
Analytical and Bioanalytical Chemistry. 414:713-720
The topology of DNA is a critical quality attribute for plasmid-based pharmaceuticals, making quantification of trace levels of plasmid topoisomers an important analytical priority. An automated and cost-effective method based on capillary gel electr
Publikováno v:
Molecular Pharmacology. 101:24-32
DNA topoisomerases regulate the topological state of DNA, relaxing DNA supercoils and resolving catenanes and knots that result from biologic processes, such as transcription and replication. DNA topoisomerase II (TOP2) enzymes achieve this by bindin
Publikováno v:
Journal of the American Chemical Society. 143:16734-16739
Despite the frequent occurrence of knotted frameworks in protein structures, the latent potential of peptide strands to form entangled structures is rarely discussed in peptide chemistry. Here we report the construction of highly entangled molecular
Autor:
Kentaro Koide, Yuki Ouchi, Lai Lai San, Chie Nakajima, Ruttana Pachanon, Yasuhiko Suzuki, Siriporn Kongsoi, Fuangfa Utrarachkij, Jong-Hoon Park
Publikováno v:
Microbial Drug Resistance. 27:1397-1404
Aims: Quinolone-resistant nontyphoidal Salmonella having serine replaced by isoleucine at the 83rd amino acid in GyrA (GyrA-Ser83Ile) has recently been found in Asian countries. In this study, we aimed to examine the direct effect of substitution Ser
Autor:
Valeria Cassina, Matteo Cristofalo, Claudia Adriana Marrano, Laura Finzi, Qing Shao, Francesco Mantegazza, Domenico Salerno, David Dunlap
Publikováno v:
Nucleic Acids Research
Single molecule experiments have demonstrated a progressive transition from a B- to an L-form helix as DNA is gently stretched and progressively unwound. The particular sequence of a DNA segment defines both base stacking and hydrogen bonding that af