Results 71 to 80 of about 2,257,590 (274)

SLFN5-mediated chromatin dynamics sculpts higher-order DNA repair topology

open access: yes, 2023
Original data for manuscript "SLFN5-mediated chromatin dynamics sculpts higher-order DNA repair topology ...
huang, J (via Mendeley Data)   +1 more
core   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Quantifying complexity in DNA structures with high resolution Atomic Force Microscopy

open access: yesNature Communications
DNA topology is essential for regulating cellular processes and maintaining genome stability, yet it is challenging to quantify due to the size and complexity of topologically constrained DNA molecules.
Elizabeth P. Holmes   +14 more
doaj   +1 more source

Mitochondrial translation and coordinated cytosolic translation in metabolic homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Mitochondrial function depends on coordinated protein production from the nuclear and mitochondrial genomes. This review highlights how cytosolic and mitochondrial translation, mRNA localization, protein import, and respiratory complex assembly are integrated to maintain mitochondrial proteostasis and function.
Boseon Kim   +4 more
wiley   +1 more source

Role of DNA Topology in Biological Machines and Evolutionarily Related Biological Functions: Chemical Chirality in Site-Specific DNA Recombination

open access: yes, 2019
Difference topology: The DNA path within a high-order DNA-protein assembly can be revealed from the topology of DNA knots and links formed by the action of Flp or Cre site-specific recombinase on target sites placed close to (and flanking) the assembly ...
Jayaram, Makkuni
core   +1 more source

DNA supercoiling-mediated G4/R-loop formation tunes transcription by controlling the access of RNA polymerase

open access: yesNature Communications
RNA polymerase (RNAP) is a processive motor that modulates DNA supercoiling and reshapes DNA structures. The feedback loop between the DNA topology and transcription remains elusive.
Jihee Hwang   +8 more
doaj   +1 more source

A TOPOLOGICAL FRAMEWORK FOR DNA REPLICATION

open access: yesJP Journal of Geometry and Topology
DNA replication, a vital biological function, can be effectively modelled as a two-component link. As this link splits during replication, the double-helical nature of DNA leads to the formation of supercoils¾essentially, entanglement. To untangle these supercoils, DNA segments must be exchanged, a task performed by enzymes called topoisomerases.
Mohamad, Abdul Adheem, Yashiro, Tsukasa
openaire   +1 more source

Unique circulating miRNAome signatures captured with distinct molecular states in Lynch syndrome and sporadic colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Circulating microRNA profiles distinguish nonmalignant Lynch syndrome from cancer‐associated Lynch syndrome, sporadic colorectal cancer, and healthy controls. Age‐stratified analysis reveals disease‐specific regulatory states, and a six‐miRNA panel shows concordant separation in an independent colorectal tissue cohort.
Ramadhani Salum Chambuso   +5 more
wiley   +1 more source

Determining the topology of stable protein–DNA complexes

open access: yes, 2013
Difference topology is an experimental technique that can be used to unveil the topological structure adopted by two or more DNA segments in a stable protein-DNA complex.
Darcy, Isabel K, Vazquez, Mariel
core   +1 more source

Increasing the activity of DNAzyme based on the telomeric sequence: 2’-OMe-RNA and LNA modifications

open access: yesOpen Chemistry, 2019
2’-OMe-RNA analogues and LNA point modifications of DNA oligonucleotides were applied for the modulation of the G-quadruplex topology and enhancement of peroxidase activity of the resulting DNAzymes.
Kosman J., Żukowski K., Juskowiak B.
doaj   +1 more source

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