Compositions and methods for epitope mapping
First Claim
1. A composition comprising a diverse population of reagent ligands attached to a solid support and a diverse population of reagent antibodies specifically bound to said reagent ligands.
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Abstract
The invention provides a composition comprising a diverse population of reagent ligands attached to a solid support and a diverse population of reagent antibodies specifically bound to the reagent ligands. The ligands can be peptides, oligosaccharides, oligonucleotides, or organic molecules. The invention additionally provides methods of determining an epitope in a sample contacting a composition comprising a diverse population of ligands attached to a solid support and a diverse population of antibodies specifically bound to each of the ligands with a sample; and detecting the antibodies bound to the diverse population of ligands. The invention further provides methods of diagnosing a disease, identifying a potential therapeutic agent, and mapping accessible epitopes of a polypeptide using invention compositions.
49 Citations
47 Claims
- 1. A composition comprising a diverse population of reagent ligands attached to a solid support and a diverse population of reagent antibodies specifically bound to said reagent ligands.
- 7. A composition comprising a diverse population of reagent ligands attached to a solid support and a diverse population of reagent antibodies specifically bound to a subset of said reagent ligands, wherein an unbound reagent ligand has binding activity for a reagent antibody having specificity for a molecule in a sample.
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12. A method of determining an epitope in a sample, comprising:
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(a) contacting a composition comprising a diverse population of reagent ligands attached to a solid support and a diverse population of reagent antibodies specifically bound to said reagent ligands with a sample; and
(b) detecting said reagent antibodies bound to said diverse population of reagent ligands.
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22. A method of diagnosing a disease, comprising:
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(a) contacting a composition comprising a diverse population of reagent ligands attached to a solid support and a diverse population of reagent antibodies specifically bound to said reagent ligands with a sample from an individual;
(b) detecting said reagent antibodies bound to said diverse population of reagent ligands; and
(c) identifying which of said reagent ligands is unbound by reagent antibody, wherein a reagent ligand unbound by reagent antibody has binding activity for an antibody having specificity for a molecule associated with said disease. - View Dependent Claims (23, 24, 25, 26, 28, 29, 30, 31, 32)
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27. A method of identifying a potential therapeutic target, comprising:
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(a) contacting a composition comprising a diverse population of reagent ligands attached to a solid support and a diverse population of reagent antibodies specifically bound to said reagent ligands with a sample from an individual having a disease;
(b) detecting reagent antibody binding to said diverse population of reagent ligands;
(c) comparing said reagent antibody binding to said diverse population of reagent ligands to the antibody binding of a normal sample contacted with said composition; and
(d) determining which of said reagent ligands differs in antibody binding between said sample from said individual having a disease and said normal sample, wherein a reagent ligand differing in antibody binding between said samples is a potential therapeutic target.
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33. A method of mapping accessible epitopes of a polypeptide, comprising:
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(a) contacting a composition comprising a diverse population of reagent ligands attached to a solid support and a diverse population of reagent antibodies specifically bound to each of said reagent ligands with a polypeptide;
(b) detecting said reagent antibodies bound to said diverse population of reagent ligands; and
(c) identifying which of said reagent ligands is unbound by reagent antibody, wherein a reagent ligand unbound by reagent antibody has binding activity for an antibody having specificity for a polypeptide epitope accessible to said antibody. - View Dependent Claims (34, 35, 36, 37, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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38. A method of determining a binding activity in a sample, comprising:
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(a) contacting a composition comprising a diverse population of reagent ligands attached to a solid support and a diverse population of reagent binding molecules specifically bound to said reagent ligands with a sample; and
(b) detecting said reagent binding molecules bound to said diverse population of reagent ligands.
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Specification