منابع مشابه
Force spectroscopy of single DNA and RNA molecules.
Experiments in which single molecules of RNA and DNA are stretched, and the resulting force as a function of extension is measured have yielded new information about the physical, chemical and biological properties of these important molecules. The behavior of both single-stranded and double-stranded nucleic acids under changing solution conditions, such as ionic strength, pH and temperature, h...
متن کاملSynergistic self-assembly of RNA and DNA molecules
DNA has recently been used as a programmable 'smart' building block for the assembly of a wide range of nanostructures. It remains difficult, however, to construct DNA assemblies that are also functional. Incorporating RNA is a promising strategy to circumvent this issue as RNA is structurally related to DNA but exhibits rich chemical, structural and functional diversities. However, only a few ...
متن کامل“the effect of risk aversion on the demand for life insurance: the case of iranian life insurance market”
abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...
15 صفحه اولRibozymes: Building the RNA world
For nearly thirty years, nucleic acid biochemists have dreamed of a very special RNA molecule, still hypothetical, which is thought to have played a key role in the early history of life on earth and may enable the production of life in the laboratory. That molecule is an RNA enzyme, or ribozyme, with the ability to catalyze the replication of RNA molecules, including copies of itself. All know...
متن کاملIonic current blockades from DNA and RNA molecules in the alpha-hemolysin nanopore.
We characterize the substate structure of current blockades produced when single-stranded polynucleotide molecules were electrophoretically driven into the alpha-hemolysin protein pore. We frequently observe substates where the ionic current is reduced by approximately 50%. Most of these substates can be associated with a molecular configuration where a polymer occupies only the vestibule regio...
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ژورنال
عنوان ژورنال: Revista de Ensino de Bioquímica
سال: 2004
ISSN: 2318-8790
DOI: 10.16923/reb.v2i2.146