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M. Maestre, James Wang (1971)
Circular dichroism of superhelical DNABiopolymers, 10
J. Brahms, W. Mommaerts (1964)
A STUDY OF CONFORMATION OF NUCLEIC ACIDS IN SOLUTION BY MEANS OF CIRCULAR DICHROISM.Journal of molecular biology, 10
H. Devoe, I. Tinoco (1962)
The hypochromism of helical polynucleotides.Journal of molecular biology, 4
Mary Tunis-Schneider, Marcos Maestre (1970)
Circular dichroism spectra of oriented and unoriented deoxyribonucleic acid films--a preliminary study.Journal of molecular biology, 52 3
JR JOHNSON, JR TINOCO (1969)
Circular dichroism of polynucleotides: A simple theoryBiopolymers, 7
G. Fasman, B. Schaffhausen, L. Goldsmith, A. Adler (1970)
Conformational changes associated with f-1 histone-deoxyribonucleic acid complexes. Circular dichroism studies.Biochemistry, 9 14
M. Ageno, E. Dore, C. Frontali (1969)
The alkaline denaturation of DNA.Biophysical journal, 9 11
T. Okubo, N. Ise (1969)
Mean and Single-Ion Activity Coefficients and Transference Data of the Sodium Salt of a Deoxyribonucleic Acid in Aqueous SolutionMacromolecules, 2
F. Ascoli, M. Branca, C. Mancini, B. Pispisa (1972)
Specificity in the interaction between some chiral Co(III) complex ions and DNA in aqueous solutionJournal of the Chemical Society, Faraday Transactions, 68
D i e r e n t Behavior oj Native and Denatured D N A in the Interaction with Tris(ethy1enediamine) Co(I1I) Complex Ions Peculiar variations in the ultraviolet circular dichroism spectra of native DNA in aqueous- alcoholic solutionsâ in films a t low degree of relative humidity2 and in solutions of superhelical DNA3 were recently observed and interpreted as an indication of a change in the secondary structure of the macromolecule. More recently, we have found similar changes in t.he circular dichroism spectra of native DNA in aqueous solutions upon binding with [Co(en)$] complex counterions. On the basis of stereochemical considerations as well as of a number of other experimental findings we concluded that in this case the perturbation in the secondary structure of DNA chiefly arises from the accommodation of the octahedral complex molecules in the major groove of the double helix.4 This conclusion is now also supported by the results obtained with denatured DNA. Denatured DNA was obtained by the method of alkaline denaturation5of highly polymerized calf thymus DNA (Worthington Corp., U.S. !. Some modifications were necessary, however, because of the relatively large amount of material required for the present investigation. In each batch, 0.3 ml
Biopolymers – Wiley
Published: Oct 1, 1973
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