摘要:
Compounds and methods for modulating target nucleic acids found in organelles or sub-organelles of cells are provided. The compounds and methods modulate target nucleic acids in a sub-nuclear organelle include, but are not limited to, the nucleolus and/or a cajal body of animal cells.
摘要:
Oligomeric compounds including oligoribonucleotides and oligoribonucleosides are provided that have subsequences of 2′-pentoribofuranosyl nucleosides that activate dsRNase. The oligoribonucleotides and oligoribonucleosides can include substituent groups for increasing binding affinity to complementary nucleic acid strand as well as substituent groups for increasing nuclease resistance. The oligomeric compounds are useful for diagnostics and other research purposes, for modulating the expression of a protein in organisms, and for the diagnosis, detection and treatment of other conditions susceptible to oligonucleotide therapeutics. Also included in the invention are mammalian ribonucleases, i.e., enzymes that degrade RNA, and substrates for such ribonucleases. Such a ribonuclease is referred to herein as a dsRNase, wherein “ds” indicates the RNase's specificity for certain double-stranded RNA substrates. The artificial substrates for the dsRNases described herein are useful in preparing affinity matrices for purifying mammalian ribonuclease as well as non-degradative RNA-binding proteins.
摘要:
The present invention provides polynucleotides encoding human RNase III and polypeptides encoded thereby. Methods of using said polynucleotides and polypeptides are also provided.
摘要:
The present invention provides polynucleotides encoding human RNAse III and polypeptides encoded thereby. Methods of using said polynucleotides and polypeptides are also provided.
摘要:
The present invention provides methods for the determination of the structure of biomolecular targets, as well as the site and nature of the interaction between ligands and biomolecular targets. The present invention also provides methods for the determination of the relative affinity of a ligand for the biomolecular target it interacts with. Also provided are methods for screening ligand or combinatorial libraries of compounds against one or more than one biological target molecules. The methods of the invention also allow determination of the relative binding affinity of combinatorial and other compounds for a biomolecular target. The present invention further provides methods for the use of mass modifying tags for screening multiple biomolecular targets. In a preferred embodiment, ligands which have great specificity and affinity for molecular interaction sites on biomolecules, especially RNA can be identified. In preferred embodiments, such identification can be made simultaneously with libraries of ligands.
摘要:
Diagnostic method for detecting cancer in humans comprising assaying a serum sample for concentration of a particular DNA-binding protein. The concentration of this serum protein has been found to be significantly different in patients having cancer than in cancer-free patients.
摘要:
Compositions comprising first and second oligomers are provided wherein at least a portion of the first oligomer is capable of hybridizing with at least a portion of the second oligomer, at least a portion of the first oligomer is complementary to and capable of hybridizing to a selected target nucleic acid, and at least one of the first or second oligomers includes a modified sugar and/or backbone modification. In some embodiments the modification is a 2′ substituent group on a sugar moiety that is not H or OH. Oligomer/protein compositions are also provided comprising an oligomer complementary to and capable of hybridizing to a selected target nucleic acid and at least one protein comprising at least a portion of an RNA-induced silencing complex (RISC), wherein at least one nucleotide of the oligomer has a modified sugar and/or backbone modification.
摘要:
The present invention includes compositions and methods useful for modulating protein expression. In certain embodiments, the present invention includes oligomeric compounds comprising modified nucleosides and modified internucleoside linkages.
摘要:
The present invention provides polynucleotides encoding human RNase III and polypeptides encoded thereby. Methods of using said polynucleotides and polypeptides are also provided.