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Details for Patent: 6,177,557

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Details for Patent: 6,177,557

Title: High affinity ligands of basic fibroblast growth factor and thrombin
Abstract:The present invention utilizes the SELEX (Systematic Evolution of Ligands for EXponential Enrichment) method for identifying and preparing nucleic acid ligands to basic fibroblast growth factor (bFGF) and thrombin. Included in the invention are nucleic acid ligands to bFGF which are inhibitors of bFGF and 2'-amino-modified RNA ligands to bFGF. Further included in the present invention are modified nucleotide sequences to thrombin based on the sequences of the RNA ligands identified. The modified RNA ligands to bFGF and thrombin exhibit increased in vivo stability.
Inventor(s): Janjic; Nebojsa (Boulder, CO), Gold; Larry (Boulder, CO), Tasset; Diane (Boulder, CO)
Assignee: NeXstar Pharmaceuticals, Inc. (Boulder, CO)
Filing Date:Aug 05, 1996
Application Number:08/687,421
Claims:1. A purified and isolated non-naturally occurring DNA ligand to bFGF wherein the nucleic acid sequence of said ligand is selected from the group consisting of SEQ ID NOS: 330-444.

2. A purified and isolated non-naturally occurring nucleic acid ligand to bFGF wherein the nucleic acid sequence of said ligand is substantially homologous to and has substantially the same ability to bind bFGF as a ligand selected from the group consisting of SEQ ID NOS: 7-69, 101-185, 281-319 and 330-444.

3. A purified and isolated non-naturally occurring nucleic acid ligand to bFGF wherein said ligand has substantially the same structure and substantially the same ability to bind bFGF as a ligand selected from the group consisting of SEQ ID NOS: 7-69, 101-185, 281-319 and 330-444.
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