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|Title:||Methods for identifying nucleic acid ligands of human neutrophil elastase|
|Abstract:||Methods are described for the identification and preparation of nucleic acid ligands to human neutrophil elastase. Included in the invention are specific RNA and DNA ligands to elastase identified by the SELEX method.|
|Inventor(s):||Jayasena; Sumedha D. (Boulder, CO), Gold; Larry (Boulder, CO)|
|Assignee:||NeXstar Pharmaceuticals, Inc. (Boulder, CO)|
|Filing Date:||Feb 22, 1994|
|Claims:||1. A method for identifying nucleic acid ligands to elastase, comprising: |
a) contacting a candidate mixture of nucleic acids with elastase, wherein nucleic acids having an increased affinity to elastase relative to the candidate mixture nucleic acids may be partitioned from the remainder of the candidate mixture;
b) partitioning the increased affinity nucleic acids from the remainder of the candidate mixture; and
c) amplifying the increased affinity nucleic acids to yield a ligand-enriched mixture of nucleic acids, whereby nucleic acid ligands to elastase may be identified.
2. The method of claim 1 wherein said candidate mixture of nucleic acids is comprised of single stranded nucleic acids.
3. The method of claim 2 wherein said single stranded nucleic acids are ribonucleic acids.
4. The method of claim 2 wherein said single stranded nucleic acids are 2'-amino-2'-deoxypyrimidine modified ribonucleic acids.
5. The method of claim 2 wherein said single stranded nucleic acids are deoxyribonucleic acids.
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