𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Circular dichroism of helices formed by purine monomers with pyrimidine polynucleotides

✍ Scribed by Hansie Dorcal Mathelier; F. B. Howard; H. Todd Miles

Publisher
Wiley (John Wiley & Sons)
Year
1979
Tongue
English
Weight
642 KB
Volume
18
Category
Article
ISSN
0006-3525

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The CD spectra of a number of helical complexes formed by purine monomers and complementary pyrimidine polyribonucleotides have been observed over the range 200–400 nm. Each of these spectra is quite similar to that of the corresponding polymer–polymer helix. The spectra are evidently determined by the geometry of the asymmetric array of bases, largely unperturbed by the ribose–phosphate backbone. The helix structure (A‐form), on the other hand, is determined by the backbone of the pyrimidine homopolymer. Data on the monomer–polymer complexes support the conclusion that the CD spectra of ribohomopolymer helices depend primarily on interastrand interactions of the same transition within a given base and are relatively unaffected by transitions of the complementary base.

📜 SIMILAR VOLUMES

Circular dichroism of helical polynucleo
Circular dichroism of helical polynucleotides calculated by the linear response method
✍ Stephen M. Redmann Jr.; William Rhodes 📂 Article 📅 1979 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 839 KB

## Abstract Linear response theory in the decorrelation or random‐phase approximation is used to calculate the absorption and CD spectra of model helical polymers, including single‐stranded polyadenylic acid. The method, which makes use of infinite polymer selection rules for the linear response te

Calculation of the circular dichroism of
Calculation of the circular dichroism of double-helical nucleic acids. III. Dependence of the results on the choice of wave functions for purines and pyrimidines
✍ David S. Studdert; Robert C. Davis 📂 Article 📅 1974 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 559 KB

## Abstract The circular dichroism of double‐helical nucleic acids was calculated using three different sets of wave functions for the purine and pyrimidine chromophores. Different wave functions give qualitatively the same types of spectra. Quantitatively, the differences are very substantial. How