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A polarizability theory for Z-DNA: UV absorption and CD bandshape calculations for the B-to-Z transition of poly(dG-dC)·poly(dG-dC)

✍ Scribed by Hirotoshi Ito; Y.J. I'Haya

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 579 KB
Volume: 142
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(87)87244-5

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✦ Synopsis

A polarizability theory is presented for copolymers perturbed by solvent molecules. The hypochromic red-shift of the UV absorption spectrum and the inversion of the CD profile for the B-to-Z transition of poly(dG-dC)*poly (dG-dC) are calculated by the most simplified scheme of this theory. The bandshapes qualitatively characterize the experimental results.

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Identification of a new electronic transition in the Z form of poly(dG-dC)·poly(dG-dc) by infrared absorption and resonance Raman spectroscopy

✍ L. Chinsky; B. Jolles; A. Laigle; P. Y. Turpin; J. Taboury; E. Taillandier 📂 Article 📅 1984 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 595 KB

Infrared absorption and resonance Raman spectroscopy (RRS) are used to study poly(dG-dC).poly(dG-dC) in two different forms: the right-handed B form a t low ionic strength and the left-handed 2 form a t high ionic strength. The existence of a new electronic absorption band in the 290-300-nm region i