Structural transitions of calf thymus DNA in concentrated lithium chloride solutions
β Scribed by Wolf, Barry; Berman, Stephen; Hanlon, Sue
- Book ID
- 121017185
- Publisher
- American Chemical Society
- Year
- 1977
- Tongue
- English
- Weight
- 902 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0006-2960
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π SIMILAR VOLUMES
## Abstract The BβtoβA conformational transition of calf thymus DNA fibers was followed employing Raman spectroscopy. The transition was induced by soaking DNA fibers in water/ethanol mixtures increasing from 60 to 85% ethanol (v/v). Intensity changes of 17 Raman vibrational bands were quantified i
The Raman spectra of calf thymus DNA in aqueous solution before and after irradiation in two UV regions (UVA, 320-340 nm; UVA-UVB, 280-400 nm) were investigated. Damage to the molecular structure in part was found in the DNA solution after UVA-UVB irradiation. The bands near 811 (Β±7) and 832 (Β±7) cm