Structure transition of Poly(dI-dC) studied by ultraviolet laser resonance Raman spectroscopy

Alena Tomkova; Laurent Chinsky; Pavol Miskovsky; Pierre-Yves Turpin

doi:10.1117/12.146141

17 June 1993 Structure transition of Poly(dI-dC) studied by ultraviolet laser resonance Raman spectroscopy

Alena Tomkova, Laurent Chinsky, Pavol Miskovsky, Pierre-Yves Turpin

Proceedings Volume 1921, Laser Spectroscopy of Biomolecules; (1993) https://doi.org/10.1117/12.146141
Event: Laser Spectroscopy of Biomolecules: 4th International Conference on Laser Applications in Life Sciences, 1992, Jyvaskyla, Finland

Abstract

The conformational changes of poly(dI-dC) in aqueous solution, induced by increasing the NaCl concentration from 0.1 to 5 M and in the presence of Ni²⁺ ions, have been studied by resonance Raman spectroscopy. It was shown that: (1) the high salt structure of the polymer is A/B with a predominant A conformation, (2) the addition of 9 mM NiCl₂ in the high salt solution induces the Z-conformation of the polymer, (3) the high salt structure is not a mere intermediate between the B and Z conformations of poly(dI-dC).

Citation Download Citation

Alena Tomkova, Laurent Chinsky, Pavol Miskovsky, and Pierre-Yves Turpin "Structure transition of Poly(dI-dC) studied by ultraviolet laser resonance Raman spectroscopy", Proc. SPIE 1921, Laser Spectroscopy of Biomolecules, (17 June 1993); https://doi.org/10.1117/12.146141

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