title: Oligonucleotide conjugated to linear and branched high molecular weight polyethylene glycol as substrates for RNase H.
abstract: Two conjugates of an anti-HIV oligonucleotide (ODN) with different high molecular weight monomethoxy polyethylene glycols (MPEGs) have been tested for their activity as substrate towards RNase H. The MPEG does not impede the formation of the regular hybrid duplex with the target RNA sequence as pointed out by the persistence of the RNase H activity; thus, these derivatives stimulate the hydrolysis of RNA by the enzyme at the same site and with the same extent of cleavage as the native sequence.
authors.affiliation: Institute of Bioorganic Chemistry, Siberian Division of Russian Academy of Sciences, Russia.
authors.forename: P E
authors.initials: PE
authors.lastname: Vorobjev
authors.forename: V F
authors.initials: VF
authors.lastname: Zarytova
authors.forename: G M
authors.initials: GM
authors.lastname: Bonora
mesh_terms: D019380:Anti-HIV Agents / Q000378:metabolism* / Q000494:pharmacology; D015394:Molecular Structure; D008970:Molecular Weight; D009693:Nucleic Acid Hybridization; D020320:Oligoribonucleotides, Antisense / Q000378:metabolism* / Q000494:pharmacology; D011092:Polyethylene Glycols / Q000737:chemistry*; D018075:RNA, Complementary / Q000378:metabolism; D016914:Ribonuclease H / Q000378:metabolism*; D013329:Structure-Activity Relationship; D013379:Substrate Specificity
chemical_list: D019380:Anti-HIV Agents; D020320:Oligoribonucleotides, Antisense; D018075:RNA, Complementary; D011092:Polyethylene Glycols; D016914:Ribonuclease H