Results 21 to 30 of about 9,001 (206)

L, D-Polydeoxyribonucleotides to provide an essential inhibitory effect on DNA polymerase β of human myeloid leukemia HL60 cells

open access: yesBiochemistry and Biophysics Reports, 2020
The inhibitory effect of D and L-polynucleotides of a given length (40-50n) on the catalytic activity of DNA polymerase β isolated from chromatin cells of acute myeloid leukemia HL-60 was evaluated. The synthesized L enantiomer was found to have a higher
S.V. Stovbun   +5 more
doaj   +1 more source

A Biomimetic Polynucleotides–Hyaluronic Acid Hydrogel Promotes the Growth of 3D Spheroid Cultures of Gingival Fibroblasts

open access: yesApplied Sciences, 2023
(1) Background: Three-dimensional cultures are useful tools to evaluate regenerative approaches in vitro, as they may mimic the spatial arrangement of cells more closely to natural tissues than routine 2D culture methods. (2) Methods: We investigated the
Maria Teresa Colangelo   +5 more
doaj   +1 more source

Polydeoxyribonucleotides Pre-Clinical Findings in Bone Healing: A Scoping Review

open access: yesDentistry Journal, 2023
Aim: Polydeoxyribonucleotide (PDRN) is a chain-like polymer derived from DNA. Recent in vitro and animal studies have showcased the beneficial impacts of PDRN on the process of bone mending, whether used on its own or in conjunction with other substances
Mattia Manfredini   +5 more
doaj   +1 more source

Dry/Wet Cycling and the Thermodynamics and Kinetics of Prebiotic Polymer Synthesis

open access: yesLife, 2016
The endoergic nature of protein and nucleic acid assembly in aqueous media presents two questions that are fundamental to the understanding of life’s origins: (i) how did the polymers arise in an aqueous prebiotic world; and (ii) once formed in some ...
David S. Ross, David Deamer
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   +2 more sources

Dipeptides Containing Pyrene and Modified Photochemically Reactive Tyrosine: Noncovalent and Covalent Binding to Polynucleotides

open access: yesMolecules, 2023
Dipeptides 1 and 2 were synthesized from unnatural amino acids containing pyrene as a fluorescent label and polynucleotide binding unit, and modified tyrosine as a photochemically reactive unit.
Igor Sviben   +6 more
doaj   +1 more source

Kinetic studies on the phosphorolysis of polynucleotides by polynucleotide phosphorylase

open access: yesJournal of Biological Chemistry, 1975
The kinetics of the phosphorolysis of polynucleotide (as differentiated from oligonucleotide) by polynucleotide phosphorylase of Micrococcus luteus has been investigated. Double reciprocal plots of initial velocity against either inorganic phosphate or polynucleotide concentration are linear, and furthermore, the affinity of the enzyme for either ...
J Y, Chou, M F, Singer, P, McPhie
openaire   +2 more sources

Molecular dynamics study on the mechanism of polynucleotide encapsulation by chitosan

open access: yesScientific Reports, 2017
The safe and effective delivery of therapeutic genes into target cell interiors is of great importance in gene therapy. Chitosan has been extensively studied as a gene delivery carrier due to its good biocompatibility and biodegradability.
Jia-Wei Shen   +5 more
doaj   +1 more source

2′fluoropolynucleotide-directed Reverse Transcriptase Reactions. Effect Of Homologous Polynucleotides

open access: yes, 2015
Several homologous polynucleotides have been tested as inhibitors on the reactions catalyzed by avian myeloblastosis virus (AMV) reverse transcriptase, in the presence of polyribonucleotides and 2′fluorinated polynucleotides as templates. Polynucleotides
Juca M.B.   +3 more
core   +2 more sources

Fast microwave heating-based one-step synthesis of DNA and RNA modified gold nanoparticles

open access: yesNature Communications, 2022
Simple methods for attaching polynucleotides to gold nanoparticles are of interest for simplifying conjugation in a range of applications. Here, the authors report a microwave heating-based method for the fast, one-step attachment of a range of thiolated
Mengqi Huang   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy