摘要:
A competitive binding assay is used to determine whether a non-nucleic acid molecule from a library of non-nucleic acid molecules binds to a target. The non-nucleic acid molecule competes with a labeled nucleic acid ligand for binding to the target which may be immobilized. Detecting displacement of labeled nucleic acid ligand from a complex of the labeled nucleic acid ligand and the target determines binding of the non-nucleic acid molecule to the target. The nucleic acid ligand may be immobilized and contacted with a labeled target to form a complex. Adding a non-nucleic acid molecule to the complex displaces labeled target from the complex, and detecting displacement of the labeled target determines binding of the non-nucleic acid molecule to the target. Labeled nucleic acid ligand or labeled target displaced from or remaining in the complex can be detected for detecting displacement. Nucleic acid ligands that bind to the target are identified by the SELEX method. The assay provides a high throughput screening method for determining whether a non-nucleic acid molecule binds to a target.
摘要:
Methods are described for the identification and preparation of nucleic acid ligand solutions to basic fibroblast growth factor (bFGF). Included in the invention are nucleic acid ligands to bFGF which are inhibitors of bFGF and 2′-amino-modified RNA ligands to bFGF.
摘要:
This invention discloses a novel method for conjugating macromolecules to other molecular entities. Specifically, this invention discloses a method for conjugating or derivatizing macromolecules, such as oligonucleotides and proteins, using cycloaddition reactions, such as the Diels-Alder reaction or 1,3-dipolar cycloadditions. Included in the invention are the novel bioconjugated macromolecules that can be prepared according to the method of the invention.
摘要:
This invention is directed towards a method for obtaining nucleic acid ligands against target proteins without directly purifying the target proteins. The method used in the invention is called SELEX, which is an acronym for Systematic Evolution of Ligands by EXponential enrichment. The nucleic acid ligands of the invention are useful as diagnostic and therapeutic agents for diseases in which the targets proteins play a causative role.
摘要:
The present invention includes methods for the identification and production of improved nucleic acid ligands based on the SELEX process. Also included are nucleic acid ligands to the HIV-RT protein identified according to the methods described therein.
摘要:
The present invention includes a method and device for performing automated SELEX. The steps of the SELEX process are performed at one or more work stations on a work surface by a robotic manipulator controlled by a computer. The invention also includes methods and reagents to obviate the need for size-fractionation of amplified candidate nucleic acids before beginning the next round of the SELEX process.
摘要:
Described herein are methods for identifying and preparing bivalent binding molecules to 7 transmembrane G protein-coupled receptors. The methods disclosed herein are based on the SELEX method for generating high affinity nucleic acid ligands. SELEX is an acronym for Systematic Evolution of Ligands by EXponential enrichment. The methods of this invention combine two or more binding domains to two or more different epitopes of the same 7 transmembrane G protein-coupled receptor. These bivalent binding molecules are useful as therapeutic and diagnostic agents.
摘要:
The present invention includes a method and device for performing automated SELEX. The steps of the SELEX process are performed at one or more work stations on a work surface by a cartesian robotic manipulator controlled by a computer.
摘要:
A Nucleic acid ligand “Biochip” is disclosed, consisting of a solid support to which one or more specific Nucleic acid ligands is attached in a spatially defined manner. Each Nucleic acid ligand binds specifically and avidly to a particular Target molecule contained within a Test mixture, such as a Bodily fluid. The Target molecules include, but are not limited to, proteins (cellular, viral, bacterial, etc.) hormones, sugars, metabolic byproducts, cofactor, and intermediates, drugs, and toxins. In principle, the Biochip could be used to test any chemically complex mixture provided that Nucleic acid ligands to components suspected of being present in the mixture are attached to the Biochip. Thus, the Nucleic acid ligand Biochip will have a wider use in environmental testing, etc.
摘要:
This invention discloses a method for preparing a complex comprised of a VEGF Nucleic Acid Ligand and a Non-Immunogenic, High Molecular Weight Compound or Lipophilic Compound by identifying a VEGF Nucleic Acid Ligand by SELEX methodology and associating the VEGF Nucleic Acid Ligand with a Non-Immunogenic, High Molecular Weight Compound or Lipophilic Compound. The invention further discloses Complexes comprising one or more VEGF Nucleic Acid Ligands in association with a Non-Immunogenic, High Molecular Weight Compound or Lipophilic Compound. The invention further includes a Lipid construct comprising a VEGF Nucleic Acid Ligand or Complex and methods for making the same.