Visualization of planar drug intercalations in B-DNA.

Nucleic Acids Research
C J Alden, S Arnott

Abstract

A computerized linked-atom modeling system was developed to examine the stereochemical requirements for intercalation of planar drugs into DNA. All classes of conformational possibilities for extending the polynucleotide backbone were examined for their ability to accommodate insertion of a drug into a base-paired region of DNA compatible with adjacent regions of B-DNA while stacking interactions, steric strain and non-bonded interatomic contacts were optimised. One conformation was found which proved superior to all others in ability to satisfy these criteria: an extension of the backbone by characteristic changes in two torsion angles to trans values, plus a change in one sugar puckering to C3'-endo to relieve strain in an adjacent residue. The turn angle distributed over three polynucleotides for this most general mode of intercalation is 90 degrees, equivalent to a helical unwinding of -18 degrees for B-DNA.

References

Mar 21, 1975·Biochimica Et Biophysica Acta·F Reusser
Jul 5, 1975·Journal of Molecular Biology·J M GussS Arnott
Jan 5, 1972·Nature: New Biology·W J PigramL D Hamilton
Dec 1, 1974·Proceedings of the National Academy of Sciences of the United States of America·J B Le PecqC Paoletti
Jan 7, 1972·Nature·L E Mawdesley-Thomas
Jan 1, 1970·Progress in Biophysics and Molecular Biology·S Arnott
Nov 29, 1969·Nature·S Arnott, D W Hukins
Feb 1, 1961·Journal of Molecular Biology·L S LERMAN

❮ Previous
Next ❯

Citations

Jan 1, 1978·Progress in Biophysics and Molecular Biology·H Porumb
Aug 21, 2003·Computational Biology and Chemistry·Kenji OkadaStruther Arnott
Sep 1, 1976·Proceedings of the National Academy of Sciences of the United States of America·H M SobellT D Sakore
Feb 1, 1978·Proceedings of the National Academy of Sciences of the United States of America·H M BermanR K Stodola
Sep 26, 1988·Nucleic Acids Research·S NeidleH M Berman
Oct 1, 1976·Nucleic Acids Research·S ArnottP J Smith
Nov 1, 1977·Nucleic Acids Research·C J Alden, S Arnott
Jan 1, 1979·Nucleic Acids Research·S Broyde, B Hingerty
Mar 25, 1981·Nucleic Acids Research·A DearingP A Kollman
Jul 1, 1989·Photochemistry and Photobiology·J P DemaretP Vigny
Sep 25, 1981·Journal of Molecular Biology·A StasiakT Koller
Jan 1, 1985·Annals of the New York Academy of Sciences·V N BalajiK C Murdock
Apr 1, 2016·Physical Chemistry Chemical Physics : PCCP·Wilbee D Sasikala, Arnab Mukherjee
Jan 1, 1984·CRC Critical Reviews in Biochemistry·S Neidle, Z Abraham
Oct 9, 1980·Nature·S ArnottR Chandrasekaran

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.