A new conformation-specific infrared band of A-DNA in films
- 1 January 1980
- journal article
- Published by Oxford University Press (OUP) in Nucleic Acids Research
- Vol. 8 (11) , 2527-2536
- https://doi.org/10.1093/nar/8.11.2527
Abstract
A band at 1185 cm-1 occurs in the infrared spectra of nucleic acids in their A-type conformation which has been reproduced in the literature, too. The absorbance of this band is proportional to the fraction of the A form of DNA samples containing a mixture of different forms. The 1185 cm-1 band has been assigned tentatively to a vibration of the sugar-phosphate backbone with a fairly high contribution from the sugar moiety. Drastic dehydration of the DNA films is accompanied by a continuous intensity decrease of the 1185 cm-1 band indicating a collapse of the A form.Keywords
This publication has 15 references indexed in Scilit:
- Particular structural role of H1 in complexes with DNA and comparison with H2A- and H4-DNA complexes investigated by IR linear dichroismBiopolymers, 1979
- Vibrational modes of A‐DNA, B‐DNA, and A‐RNA backbones: An application of a green‐function refinement procedureBiopolymers, 1977
- Infrared linear dichroism investigations of deoxyribonucleic complexes with histones H2B and H3Biochemistry, 1977
- Backbone conformational change in the A → B transition of deoxyribonucleic acidBiochemistry, 1976
- Conformations and structural transitions in polydeoxynucleotidesBiochemistry, 1975
- A new approach to the characterization of the B and A forms of DNA by I.R. spectroscopyBiochemical and Biophysical Research Communications, 1973
- Optimised parameters for A-DNA and B-DNABiochemical and Biophysical Research Communications, 1972
- New Possibilities of Investigating Nucleic Acids and Nucleoproteins in Aqueous Solutions by Infrared SpectroscopyNature, 1972
- Raman spectral studies of nucleic acidsBiochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1970
- A preliminary investigation on the molecular structure of rice dwarf virus ribonucleic acidJournal of Molecular Biology, 1966