Results 21 to 30 of about 89,786 (317)

Sequence dependent phase separation of protein-polynucleotide mixtures elucidated using molecular simulations

open access: yesNucleic Acids Research, 2020
Ribonucleoprotein (RNP) granules are membraneless organelles (MLOs), which majorly consist of RNA and RNA-binding proteins and are formed via liquid–liquid phase separation (LLPS).
R. M. Regy   +4 more
semanticscholar   +1 more source

Polynucleotide phosphorylase protects against renal tubular injury via blocking mt-dsRNA-PKR-eIF2α axis

open access: yesNature Communications, 2023
Renal tubular atrophy is a hallmark of chronic kidney disease. The study by Zhu et al. reveals the protective role of tubular polynucleotide phosphorylase (PNPT1) against renal atrophy by blocking the leakage of mitochondrial dsRNAs into cytoplasm where ...
Yujie Zhu   +12 more
doaj   +1 more source

Binding to the minor groove of the double-strand, tau protein prevents DNA from damage by peroxidation. [PDF]

open access: yesPLoS ONE, 2008
Tau, an important microtubule associated protein, has been found to bind to DNA, and to be localized in the nuclei of both neurons and some non-neuronal cells.
Yan Wei   +7 more
doaj   +1 more source

Development of an Interaction Assay between Single-Stranded Nucleic Acids Trapped with Silica Particles and Fluorescent Compounds

open access: yesJournal of Functional Biomaterials, 2012
Biopolymers are easily denatured by heating, a change in pH or chemical substances when they are immobilized on a substrate. To prevent denaturation of biopolymers, we developed a method to trap a polynucleotide on a substrate by hydrogen bonding using ...
R. Maeda, T. Isoda
doaj   +1 more source

Nonlinear waves in the DNA molecules containing a boundary between two homogeneous regions [PDF]

open access: yesКомпьютерные исследования и моделирование, 2009
Propagation of nonlinear conformational waves through the boundary dividing the double polynucleotide chain into two different homogeneous regions is investigated.
L. V. Yakushevich   +2 more
doaj   +1 more source

Streptomyces RNases – Function and impact on antibiotic synthesis

open access: yesFrontiers in Microbiology, 2023
Streptomyces are soil dwelling bacteria that are notable for their ability to sporulate and to produce antibiotics and other secondary metabolites. Antibiotic biosynthesis is controlled by a variety of complex regulatory networks, involving activators ...
George H. Jones
doaj   +1 more source

Characterization of individual polynucleotide molecules using a membrane channel.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1996
We show that an electric field can drive single-stranded RNA and DNA molecules through a 2.6-nm diameter ion channel in a lipid bilayer membrane. Because the channel diameter can accommodate only a single strand of RNA or DNA, each polymer traverses the ...
J. Kasianowicz   +3 more
semanticscholar   +1 more source

The Effect of Divalent Metal Ions on the Temperature Stability of Poly(I:C) Duplex

open access: yesJournal of Spectroscopy, 2020
The effect of divalent ions on the thermal stability of the double-stranded polynucleotide polyinosinic:polycytidylic acid (poly(I:C)) in a buffer solution (pH 7) was studied by UV absorption spectroscopy and thermal denaturation by measuring the ...
Evgeniya Usenko   +3 more
doaj   +1 more source

Label-Free Detection of T4 Polynucleotide Kinase Activity and Inhibition via Malachite Green Aptamer Generated from Ligation-Triggered Transcription

open access: yesBiosensors, 2023
Polynucleotide kinase (PNK) is a key enzyme that is necessary for ligation-based DNA repair. The activity assay and inhibitor screening for PNK may contribute to the prediction and improvement of tumor treatment sensitivity, respectively.
Jingyi Si   +7 more
doaj   +1 more source

Carbethoxylation of Polynucleotides [PDF]

open access: yesEuropean Journal of Biochemistry, 1971
Diethyl pyrocarbonate has been shown to react with poly(A), poly(C) and poly(G) but poly(U) does not react. Diethyl pyrocarbonate appears to carbethoxylate amino groups on the bases. Poly(A) can bind one carbethoxy group per base but the binding capacity of poly(G) and poly(C) under non‐denaturing conditions is 0.32 and 0.23, respectively.
openaire   +3 more sources

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