THE INTERACTIONS. OF 4-NITROQUINOLINE-1-OXIDE WITH FOUR DEOXYRIBONUCLEOTIDES
Journal Article
·
· Journal of Biochemistry
OSTI ID:983258
The interactions of 4-nitroquinoline-1-oxide (NQO) with the four 5{prime}-deoxyribonucleotides were probed using absorption spectra of the charge transfer bands and {sup 1}H and {sup 13}C NMR spectra of nucleotide-NQO mixtures. Applying a Benesi-Hildebrand type equation to the spectral data yielded equilibrium constants (K(dpG:NQO) = 16 M{sup -1} K(dpA:NQO) = 12 M{sup -1}, K(dpT:NQO) = K(dpC:NQO) = 4 M{sup -1}) which suggest the preference of NQO for the guanine residue in a DNA. From {sup 13}C and {sup 1}H NMR data, a structure for the dpG:NQO complex is proposed.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- Chemical Sciences Division
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 983258
- Report Number(s):
- LBL-6759
- Journal Information:
- Journal of Biochemistry, Journal Name: Journal of Biochemistry
- Country of Publication:
- United States
- Language:
- English
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