Results 351 to 360 of about 438,619 (385)

Nucleic acid reactivity and conformation I. Deamination of cytosine by nitrous acid

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1972
Abstract The rate of deamination of cytosine to uracil by nitrous acid was measured under several sets of conditions for the following compounds: cytidine, cytidine 5′-phosphate, poly(cytidylic acid) (in both single-stranded and half-protonated double helix forms), and the poly(I) · poly(C) complex. The relative reactivity of nucleoside : nucleotide :
Robert Shapiro, Hisao Yamaguchi
openaire   +3 more sources

Optical activity and the conformation of polynucleotide models of nucleic acids

Journal of Molecular Biology, 1965
The interaction between polymers of adenylic and uridylic acids has been investigated using homopolyadenylate and homopolyuridylate, and copolymers containing various ratios of AMP and UMP randomly distributed. The measurements of circular dichroism in the region of 230 to 320 m μ indicate that the formation of the two-stranded poly (A + U)† helical ...
openaire   +3 more sources

Determination of the Conformation of Nucleic Acids by Electronic CD

1996
The natural and synthetic nucleic acids are polymers of nucleotides that in turn are made up of an aromatic base, a sugar, and a phosphate group. The bases are the chromophores that absorb ultraviolet light to undergo electronic transitions, which begin at 300 nm and continue into the vacuum UV region.
openaire   +2 more sources

Nucleic acid conformation: crystal structure of a naturally occurring dinucleoside phosphate (UpA).

Nature: New biology, 1971
N. Seeman, J. Sussman, H. Berman, Sung-Hou Kim   +3 more
semanticscholar   +1 more source

Conformational penalties: New insights into nucleic acid recognition

Current Opinion in Structural Biology
The energy cost accompanying changes in the structures of nucleic acids when they bind partner molecules is a significant but underappreciated thermodynamic contribution to binding affinity and specificity. This review highlights recent advances in measuring conformational penalties and determining their contribution to the recognition, folding, and ...
Ainan, Geng, Rohit, Roy, Hashim M, Al-Hashimi   +2 more
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Dependence of purine 8C‐H exchange on nucleic acid conformation and base‐pairing geometry: A dynamic probe of DNA and RNA secondary structures

Biopolymers, 1985
J. Benevides, G. Thomas
semanticscholar   +1 more source

PARTITION STUDIES ON NUCLEIC ACIDS. I. INFLUENCE OF ELECTROLYTES, POLYMER CONCENTRATION AND NUCLEIC ACID CONFORMATION OF THE PARTITION IN THE DEXTRAN-POLYETHYLENE GLYCOL SYSTEM.

Biochimica et Biophysica Acta, 1965
P. Albertsson
semanticscholar   +1 more source

Structure and Conformation of Nucleic Acids and Protein-Nucleic Acid Interactions [PDF]

Biochemical Society Transactions, 1976
openaire   +1 more source

Asymmetric Acceptors Enabling Organic Solar Cells to Achieve an over 17% Efficiency: Conformation Effects on Regulating Molecular Properties and Suppressing Nonradiative Energy Loss

Advanced Energy Materials, 2021
Wei Gao, Alex K-y Jen, Cheng Zhong
exaly  

Theoretical studies of nucleic acid conformation: potential energies, chain statistics, and model building

, 1982
W. Olson
semanticscholar   +1 more source