ISSN:
0006-3525
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Infrared absorption and ir linear dichroism measurements have been performed on poly[d(A-T)-Cs+] films at various relative humidities. At high relative humidity, samples are in a B form; at low relative humidity, in a C form. The B → C conformational transition is shown to be a noncooperative one corresponding to a gradual evolution of the backbone geometry of the polynucleotide within the B family. the C-form-type spectrum is characteristic of an alternated phosphodiester chain with a dinucleotidic repeat unit.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bip.360260207