Publication

NMR study of the p-DNA duplex [(4'->2')-3'-desoxyribopyranosyl-(m5CGDDTTm5CG)2] and comparison with its p-RNA analogue

2001
Journal Articles

Abstract

The detn. of the soln. structure of small non-natural oligopeptides and oligonucleotides by NMR, which is one of the main research topics of our group, is illustrated on the example of an 8-mer p-DNA duplex. P-DNA, the 3'-desoxy analog of p-RNA, forms an highly selective pairing system but its pairing strength is less than that of analogous p-RNA sequences. The NMR study reveals that the backbone of p-DNA corresponds more closely to the conformation predicted for pentapyranose nucleic acids by qual. conformational anal. than p-RNA. [on SciFinder (R)]

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2001
Journal Articles

Abstract

Official source

Related concepts (30)

Nuclear magnetic resonance

Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a strong constant magnetic field are perturbed by a weak oscillating magnetic field (in the near field) and respond by producing an electromagnetic signal with a frequency characteristic of the magnetic field at the nucleus. This process occurs near resonance, when the oscillation frequency matches the intrinsic frequency of the nuclei, which depends on the strength of the static magnetic field, the chemical environment, and the magnetic properties of the isotope involved; in practical applications with static magnetic fields up to ca.

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In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the most essential part of biological inheritance. This is essential for cell division during growth and repair of damaged tissues, while it also ensures that each of the new cells receives its own copy of the DNA. The cell possesses the distinctive property of division, which makes replication of DNA essential.

RNA world

The RNA world is a hypothetical stage in the evolutionary history of life on Earth, in which self-replicating RNA molecules proliferated before the evolution of DNA and proteins. The term also refers to the hypothesis that posits the existence of this stage. Alexander Rich first proposed the concept of the RNA world in 1962, and Walter Gilbert coined the term in 1986. Alternative chemical paths to life have been proposed, and RNA-based life may not have been the first life to exist.

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NMR study of the p-DNA duplex [(4'->2')-3'-desoxyribopyranosyl-(m5CGDDTTm5CG)2] and comparison with its p-RNA analogue

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