Results 21 to 30 of about 65,968 (266)

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

Binding of phenazinium dye safranin T to polyriboadenylic acid: spectroscopic and thermodynamic study. [PDF]

open access: yesPLoS ONE, 2014
Here, we report results from experiments designed to explore the association of the phenazinium dye safranin T (ST, 3,7-diamino-2,8-dimethyl-5-phenylphenazinium chloride) with single and double stranded form of polyriboadenylic acid (hereafter poly-A ...
Ankur Bikash Pradhan   +3 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, P McPhie, M F Singer
openaire   +2 more sources

When DNA Polymerases Multitask: Functions Beyond Nucleotidyl Transfer

open access: yesFrontiers in Molecular Biosciences, 2022
DNA polymerases catalyze nucleotidyl transfer, the central reaction in synthesis of DNA polynucleotide chains. They function not only in DNA replication, but also in diverse aspects of DNA repair and recombination.
Denisse Carvajal-Maldonado   +3 more
doaj   +1 more source

Synthesis of Polynucleotide Analogs Containing a Polyvinyl Alcohol Backbone

open access: yesMolecules, 2008
Water soluble homo-base polynucleotide analogues were synthesized in whichpolyvinyl alcohol and partially phosphonated polyvinyl alcohol constituted the backbones,onto which were grafted uracil or adenine via 1,3-dioxane spacers formed by acetalformation
Per Carlsen, Qiang Yu
doaj   +1 more source

Synthesis, Cyclopolymerization and Cyclo-Copolymerization of 9-(2-Diallylaminoethyl)adenine and Its Hydrochloride Salt

open access: yesMolecules, 2012
We report herein the synthesis and characterization of 9-(2-diallylaminoethyl) adenine. We evaluated two different synthetic routes starting with adenine where the optimal route was achieved through coupling of 9-(2-chloroethyl)adenine with diallylamine.
Karyn Usher   +4 more
doaj   +1 more source

Polycationic Monomeric and Homodimeric Asymmetric Monomethine Cyanine Dyes with Hydroxypropyl Functionality—Strong Affinity Nucleic Acids Binders

open access: yesBiomolecules, 2021
New analogs of the commercial asymmetric monomethine cyanine dyes thiazole orange (TO) and thiazole orange homodimer (TOTO) with hydroxypropyl functionality were synthesized and their properties in the presence of different nucleic acids were studied ...
Ivana Mikulin   +9 more
doaj   +1 more source

Error Analysis of Chemically Synthesized Polynucleotides

open access: yesBioTechniques, 1998
Two single-stranded polynucleotide constructs, 123 and 126 nucleotides in length, were chemically synthesized using standard phosphoramidite chemistry.
Karl H. Hecker, Randolph L. Rill
doaj   +1 more source

Long‐chain polynucleotide filler for skin rejuvenation: efficacy and complications in five patients

open access: yesDermatologic Therapy, 2016
Aging well has become the new target of preventative medicine, and aesthetic dermatology can contribute to this request. The polynucleotide (PN) containing products not only fill the space, but improve tissue regeneration, resulting in more natural ...
K. Park   +4 more
semanticscholar   +1 more source

Macromolecule‐Driven Supramolecular Polymerization Induced by Crowding Effects

open access: yesAngewandte Chemie, EarlyView.
A systematic study is presented that investigates the influence of the excluded volume effect by macromolecules on supramolecular polymerizations in organic media. Upon crowding, the discotic supramolecular monomers sequentially assemble into polymers and higher‐order aggregates (HOAs), affected by the macromolecule's concentration, size and polarity ...
Joost J. B. v. d. Tol   +5 more
wiley   +2 more sources

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