Abstract: Provided is a preparative method for isolating RNA comprising an oligo- or polynucleotide from a sample, which method comprises: (a) treating the sample with a reactant capable of covalently modifying the 2′-OH position of the ribose rings of the RNA under conditions so that a proportion of the 2′-OH positions of the ribose rings bear a substituent; and (b) preparing isolated RNA therefrom by separating material containing the substituent from the sample on the basis of a property of the substituent.

Abstract: The present invention relates to a purified or isolated polynucleotide encoding human CIDE B protein, the regulatory nucleic acids contained therein, polymorphic markers thereof, and the resulting encoded protein, as well as to methods and kits for detecting this polynucleotide and this protein. The present invention also pertains to a polynucleotide carrying the natural regulatory regions of the CIDE B gene which is useful, for example, to express a heterologous nucleic acid in host cells or host organisms as well as functionally active regulatory polynucleotides derived from said regulatory regions.