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Nuclear magnetic resonance techniques are used to confirm the points of attachment of anthramycin to DNA. Using 13C NMR spectroscopy, the C-11 resonance of anthramycin is shown to undergo a 16-ppm upfield shift upon formation of a covalent bond with DNA, indicative of an aminal linkage at that position. The site of attachment on the DNA is determined using the self-complementary oligodeoxyribonucleotide d-(ApTpGpCpApT) as a DNA model. Proton NMR, both in H2O and D2O solutions, provides a direct characterization of the anthramycin-oligonucleotide adduct. Upon covalent attachment to the duplex, a loss in the helical symmetry is observed, resulting in a doubling of several of the oligonucleotide resonances. Examination of the data confirms that the point of attachment of the anthramycin to the d-(ApTpGpCpApT) is at the guanine-NH2-position, consistent with the model proposed by Hurley and Petrusek (Hurley, L. H., and Petrusek, R. L. (1979) Nature (Lond.) 282, 529-531) and Petrusek et al. (Petrusek, R. L., Anderson, G. L., Garner, T. F., Fannin, Q. L., Kaplan, D. J., Zimmer, S. G., and Hurley, L. H. (1981) Biochemistry 20, 1111-1119).
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
November 1979,
Nature,
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
August 1974,
Proceedings of the National Academy of Sciences of the United States of America,
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
November 1979,
Biochemistry,
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
June 1974,
Proceedings of the National Academy of Sciences of the United States of America,
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
May 1980,
Biochemistry,
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
June 1982,
Journal of neurosurgery,
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
January 1994,
Methods in enzymology,
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
March 1992,
Magnetic resonance in medicine,
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
December 1978,
Proceedings of the National Academy of Sciences of the United States of America,
D E Graves, and
C Pattaroni, and
B S Krishnan, and
J M Ostrander, and
L H Hurley, and
T R Krugh
October 2013,
Chemical research in toxicology,
