Results 81 to 90 of about 1,893,090 (266)
A minimal cellulosome‐like system in Cellulosilyticum lentocellum
FEBS Open Bio, EarlyView.Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan +2 more
wiley +1 more source
Role of the central cations in the mechanical unfolding of DNA and RNA G-quadruplexes. [PDF]
, 2015 Cations are known to mediate diverse interactions in nucleic acids duplexes but they are critical in the arrangement of four-stranded structures. Here, we use all-atom molecular dynamics simulations with explicit solvent to analyse the mechanical ...
Bergues-Pupo, AE +25 more
core +1 more source
DNA Topology and Global Architecture of Point Centromeres
Cell Reports, 2015 DNA is wrapped in a left-handed fashion around histone octasomes containing the centromeric histone H3 variant CENP-A. However, DNA topology studies have suggested that DNA is wrapped in a right-handed manner around the CENP-A nucleosome that occupies ...
Ofelia Díaz-Ingelmo +4 more
doaj +1 more source
Bacterial DNA topology and infectious disease [PDF]
Nucleic Acids Research, 2008 The gram-negative bacterium Escherichia coli and its close relative Salmonella enterica have made important contributions historically to our understanding of how bacteria control DNA supercoiling and of how supercoiling influences gene expression and vice versa.
Dorman, Charles J., Corcoran, Colin P.
openaire +4 more sources
FEBS Open Bio, EarlyView.Human ABCE1 cannot functionally replace its yeast ortholog. Yeast–human chimera analysis identified NBD1 as a major interspecies barrier. Genetic screening yielded hABCE1 revertants that rescue yeast viability but fail to suppress aberrant translation reinitiation in the 3′ UTR.
Eriko Nakata +3 more
wiley +1 more source
Retroviral intasomes search for a target DNA by 1D diffusion which rarely results in integration
Nature Communications, 2016 Retroviral Integration into the host DNA is a rare event with evidence suggesting that it relies on DNA topology and sequence. Here the authors present single molecule evidence that shows the retroviral integration machinery vigorously scans the target ...
Nathan D. Jones +6 more
doaj +1 more source
FEDS: a Novel Fluorescence-Based High-Throughput Method for Measuring DNA Supercoiling
mBio, 2020 DNA supercoiling (DS) is essential for life because it controls critical processes, including transcription, replication, and recombination. Current methods to measure DNA supercoiling in vivo are laborious and unable to examine single cells.
Alexandre Duprey, Eduardo A. Groisman
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Variants in SLC6A1, encoding the GABA transporter 1 (GAT‐1), cause epilepsy, autism spectrum disorder, and developmental delay via loss of GABA uptake, impaired trafficking, and ER retention. We previously found that 4‐Phenylbutyrate (PBA), an FDA‐approved drug, restores GABA uptake and reduces seizures in SLC6A1‐related disorders ...
Melissa B. DeLeeuw +5 more
wiley +1 more source
Cellular structures in Topology [PDF]
, 1990 This book describes the construction and the properties of CW-complexes. These spaces are important because firstly they are the correct framework for homotopy theory, and secondly most spaces that arise in pure mathematics are of this type.
Renzo Piccinini +4 more
core +1 more source
A localized transition in the size variation of circular DNA in nanofluidic slitlike confinement
AIP Advances, 2013 We report strong evidence for a localized transition in the size variation of circular DNA between strong and moderate regimes of slitlike confinement. A novel and rigorous statistical analysis was applied to our recent experimental measurements of DNA ...
Elizabeth A. Strychalski +2 more
doaj +1 more source