نتایج جستجو برای: duplexes
تعداد نتایج: 2374 فیلتر نتایج به سال:
Oligonucleotides containing 5-(N-aminohexyl)carbamoyl-modified uracils have promising features for applications as antigene and antisense therapies. Relative to unmodified DNA, oligonucleotides containing 5-(N-aminohexyl)carbamoyl-2'-deoxyuridine ((N)U) or 5-(N-aminohexyl)carbamoyl-2'-O-methyluridine ((N)U(m)), respectively exhibit increased binding affinity for DNA and RNA, and enhanced nuclea...
Sixty-two isolates of Clostridium sporogenes from canned foods were examined for cultural properties, heat resistance and DNA-DNA homology to Clostridium botulinum type A190. Sporulation was observed in most of 21 umbonate and rhizoidal colony-forming strains (colony-type I strains), but not in most of the 41 strains with convex and circular or crenate colonies with a mat to semi-glossy surface...
An ab initio method is used in a two state model to calculate consistent relative enthalpies and free energies for the stacking of nucleic acid bases in deoxyribose dinucleotides and the Watson-Crick hydrogen bonding interactions between mononucleotides when uncharged and singly charged. Favorable free energy changes are determined for the formation of dimers between mononucleotides by Watson-C...
We report that combining a DNA analog (2'F-ANA) with rigid RNA analogs [2'F-RNA and/or locked nucleic acid (LNA)] in siRNA duplexes can produce gene silencing agents with enhanced potency. The favored conformations of these two analogs are different, and combining them in a 1-1 pattern led to reduced affinity, whereas alternating short continuous regions of individual modifications increased af...
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