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Nuclear Magnetic Resonance Study of D-TGGCCA in Solution

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Specialty Biochemistry
Date 1984 Jul 25
PMID 6462922
Citations 3
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Abstract

The 1H NMR spectrum of a self complementary deoxyhexanucleotide (d-TGGCCA) in water solution has been completely and unambiguously assigned by use of two-dimensional techniques and phosphorus off-resonance decoupling experiments. The helix-coil transition has been monitored by following most of the non-exchangeable protons against temperature and was shown to be a cooperative dissociation-association process. Sequential fraying is sizable even at low temperature. Considerations of coupling constants and of Nuclear Overhauser effects show the helix to be of the B-DNA type.

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alpha-DNA-III. Characterization by high field 1H-NMR, anti-parallel self-recognition and conformation of the unnatural hexadeoxyribonucleotides alpha-[d(CpApTpGpCpG)] and alpha-[d(CpGpCpApTpG)]. Alpha-oligodeoxynucleotides as potential cellular....

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