Results 61 to 70 of about 2,295,017 (227)

Base-pair resolution analysis of the effect of supercoiling on DNA flexibility and major groove recognition by triplex-forming oligonucleotides

Nature Communications, 2021
In cells, DNA is arranged into topologically-constrained (supercoiled) structures, but how this supercoiling affects the detailed double-helical structure of DNA remains unclear.
Alice L. B. Pyne, Agnes Noy, Kavit H. S. Main, Victor Velasco-Berrelleza, Michael M. Piperakis, Lesley A. Mitchenall, Fiorella M. Cugliandolo, Joseph G. Beton, Clare E. M. Stevenson, Bart W. Hoogenboom, Andrew D. Bates, Anthony Maxwell, Sarah A. Harris   +12 more
doaj   +1 more source

Amyloidogenic Peptide Fragments Designed From Bacterial Collagen‐like Proteins Form Hydrogel

Advanced Functional Materials, EarlyView.
This study identified amyloidogenic sequence motifs in bacterial collagen‐like proteins and exploited these to design peptides that self‐assemble into β‐sheet fibers and form hydrogels. One hydrogel supported healthy fibroblast growth, showing promise for biocompatible materials. Our work demonstrates that bacterial sequences can be harnessed to create
Vamika Sagar, Xuen J Ng, Lukas Lechel, Ashish Chand Rajwar, Hendrik Bargel, Abhishek A. Jalan   +5 more
wiley   +1 more source

A role for non-B DNA forming sequences in mediating microlesions causing human inherited disease [PDF]

, 2015
Missense/nonsense mutations and micro-deletions/micro-insertions of
Aguilera, Bacolla, Bacolla, Bacolla, Bacolla, Bacolla, Ball, Belotserkovskii, Bharti, Biffi, Bochman, Boyer, Brooks, Bzymek, Cebrián, Chen, Chen, Chuzhanova, Clark, Cooper, Cooper, Cooper, De, Ding, Dong, Du, Fleming, Greenblatt, Guo, Gusev, Iyer, Jain, Jain, Javadekar, Jeitany, Kaushik Tiwari, Kondrashov, Kouzine, Kregten, Kunkel, Kunkel, Kunkel, Lam, Lee, Levinson, León-Ortiz, Lopes, Lovett, Lu, Majumdar, Margolin, Morikawa, Mort, Mukherjee, Mukherjee, Murat, Nambiar, Patel, Raghavan, Reeves, Rosche, Rouleau, Sanders, Schofield, Sen, Sharma, Sinden, Sinden, Spurlock, Stenson, Stenson, Tappino, Vasquez, Verdin, Wang, Wells, Wickramasinghe, Williams, Wu, Wu, Wu, Wu, Yang, You, Zhao, Zhao, Zhou   +86 more
core   +1 more source

Dual‐Peptide Nanoplatform: Mesoporous Silica Nanoparticles Functionalized With a Cell‐Penetrating Peptide and Loaded With Rationally Designed Antimicrobial Peptides for Tuberculosis Therapy

Advanced Healthcare Materials, EarlyView.
Machine learning–guided engineering of a plectasin‐derived peptide yields DC05, a potent antimycobacterial candidate. Encapsulation into tuftsin‐functionalized mesoporous silica nanoparticles enhances intracellular delivery, stability, and activity against Mycobacterium tuberculosis while maintaining low cytotoxicity and minimal hemolysis. The combined
Christian S. Carnero Canales, Cesar Augusto Roque‐Borda, Ana Carolina Cerqueira Negri, Oswaldo Ramirez Delgado, Letícia Oliveira Catarin Nunes, Flávia Aparecida Resende, Hernane Barud, Norival Alves Santos‐Filho, Saulo Santesso Garrido, Karen Cristina Oliveira, Alexandra Ivo de Medeiros, Rafael Miguel Sábio, Fernando Rogério Pavan   +12 more
wiley   +1 more source

Transcription-coupled DNA supercoiling dictates the chromosomal arrangement of bacterial genes

Nucleic Acids Research, 2016
Over the recent decade, the central importance of DNA supercoiling in chromosome organization and global gene regulation of bacteria became more and more visible.
Patrick Sobetzko
semanticscholar   +1 more source

Assembling a True “Olympic Gel” From over 16 000 Combinatorial DNA Rings

Advanced Materials, EarlyView.
Olympic gels are an elusive class of soft matter, consisting of molecular networks held together purely by mechanically interlocked rings. Their topological structure promises unique properties and functions, but their synthesis has proven notoriously difficult.
Sarah K. Speed, Yu‐Hsuan Peng, Azra Atabay, Krishna Gupta, Toni Müller, Carolin Fischer, Ilka M. Hermes, Jens‐Uwe Sommer, Michael Lang, Elisha Krieg   +9 more
wiley   +1 more source

An improved method for large-scale preparation of negatively and positively supercoiled plasmid DNA

BioTechniques, 2009
A rigorous understanding of the biological function of superhelical tension in cellular DNA requires the development of new tools and model systems for study.
Marita C. Barth, Debra A. Dederich, Peter C. Dedon   +2 more
doaj   +1 more source

Effects of physiological self-crowding of DNA on shape and biological properties of DNA molecules with various levels of supercoiling [PDF]

, 2017
DNA in bacterial chromosomes and bacterial plasmids is supercoiled. DNA supercoiling is essential for DNA replication and gene regulation. However, the density of supercoiling in vivo is circa twice smaller than in deproteinized DNA molecules isolated ...
Benedetti, Fabrizio, Burnier, Yannis, Dietler, Giovanni, Dorier, Julien, Japaridze, Aleksandre, Kwapich, Robert, Racko, Dusan, Stasiak, Andrzej   +7 more
core  

Supercoiled DNA: Structure [PDF]

, 2015
Supercoiling is introduced into DNA molecules when the double helix is twisted around its own axis in three‐dimensional space. Experimental techniques that are sensitive to molecular shape can be used to analyse the topological states of DNA, but the ...
Bowater, Richard
core   +1 more source

Functional Fibers in Soft Robotics: Advances in Material, Structural, and Systemic Tactics

Advanced Robotics Research, EarlyView.
Fiber‐form robotic systems offer a scalable pathway toward embodied intelligence in soft robotics. This review surveys functional fibers as material, structural, and systemic elements, highlighting advances in responsive materials, architectural programing, and fabrication strategies.
Joonhee Won, Jaehyun Jang, Hyeonseo Kim, Inyoung Choi, Steve Park, Seongjun Park   +5 more
wiley   +1 more source