Results 61 to 70 of about 7,436 (214)

Interaction of histones H1 and H1° with superhelical and linear DNA [PDF]

open access: yes, 1990
By using direct competition experiments, the binding of histone H1AB (a mixture of H1A and H1B) and H1° to superhelical and linear DNA forms was studied.
Jordanka Zlatanova   +9 more
core   +1 more source

Mapping the Conformational Landscape of DNA Minicircles Through Atomic Force Microscopy and Shape Space Analysis

open access: yesSmall, Volume 22, Issue 37, 2 July 2026.
An automated framework is presented for quantifying DNA conformational variability from atomic force microscopy (AFM) images. DNA backbones are reduced to spline representations and analyzed using cyclic Procrustes analysis to measure shape similarity across ensembles.
Laura Wiggins   +7 more
wiley   +1 more source

Determination of Number of Superhelical Turns in Simian Virus 40 DNA by Gel-Electrophoresis [PDF]

open access: yes, 1975
Closed-circular, superhelical DNA from simian virus 40 (SV40 DNA I) was treated with an excess of DNA-relaxing enzyme in the presence of increasing amounts of ethidium bromide (EtdBr).
Keller, W.
core  

Single Cell Mechanics in Disease Progression

open access: yesSmall Science, Volume 6, Issue 7, July 2026.
Cells transmit distinct mechanical forces through ECM adhesion and cell–cell junctions and actomyosin‐generated traction forces are transmitted to the substrate through integrin‐based focal adhesions. Mechanical signals are further transmitted to the nucleus via the LINC complex, connecting the cytoskeleton to the nuclear lamina. These forces integrate
Sabin Kim   +3 more
wiley   +1 more source

Superhelical path of the DNA in the nucleoprotein complex that activates the initiation of phage ø29 DNA replication [PDF]

open access: yes, 1993
Initiation of bacteriophage φ29 DNA replication is activated by protein p6, a viral double-stranded DNA-binding protein that forms a nucleoprotein complex at the viral replication origins.
Serrano, Manuel   +3 more
core   +1 more source

A new family of intrinsically disordered proteins: structural characterization of the major phasin PhaF from Pseudomonas putida KT2440. [PDF]

open access: yesPLoS ONE, 2013
Phasins are intracellular polyhydroxyalkanoat4e (PHA)-associated proteins involved in the stabilization of these bacterial carbon storage granules. Despite its importance in PHA metabolism and regulation, only few reports have focused so far on the ...
Beatriz Maestro   +5 more
doaj   +1 more source

Bubble statistics and positioning in superhelically stressed DNA [PDF]

open access: yesPhysical Review E, 2011
We present a general framework to study the thermodynamic denaturation of double-stranded DNA under superhelical stress. We report calculations of position- and size-dependent opening probabilities for bubbles along the sequence. Our results are obtained from transfer-matrix solutions of the Zimm-Bragg model for unconstrained DNA and of a self ...
Jost, Daniel   +2 more
openaire   +4 more sources

Pentatricopeptide repeat proteins in crops: Advances in functional mechanisms and breeding applications

open access: yesJournal of Integrative Plant Biology, Volume 68, Issue 7, Page 1973-2000, July 2026.
Pentatricopeptide repeat proteins coordinate nucleus‐organelle communication by modulating RNA metabolism within chloroplasts and mitochondria. This review highlights how they control critical processes like photosynthesis, seed development, fertility restoration, and stress survival in crops, and explores their potential as programmable tools for RNA ...
Mingming Wu   +7 more
wiley   +1 more source

Light‐Controlled Peptide Self‐Assembly: From Physicochemical Principles to Emerging Biomedical Applications

open access: yesAggregate, Volume 7, Issue 6, June 2026.
This review surveys recent advances in light‐controlled peptide self‐assembly for the design of smart soft matter. It summarizes the underlying physicochemical principles, including thermodynamic control for reshaping free‐energy landscapes, and nonequilibrium control to produce kinetically trapped states and dissipative structures.
Lidong Chen   +7 more
wiley   +1 more source

Transcription of polyoma virus DNA after interaction with nuclear proteins in vitro [PDF]

open access: yes, 1976
RNA polymerase B, histones and non-histone chromosomal proteins (NHP) extracted from calf thymus nuclei were used for transcription experiments with superhelical form 1 and linear Eco R1 cleaved Polyoma virus DNA.
G. Meneguzzi   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy