REDUCING THE IMMUNOGENICITY OF FUSION PROTEINS
First Claim
1. A method for reducing the immunogenicity of a fusion protein, the method comprising:
- i. identifying a candidate T-cell epitope within a junction region spanning a fusion junction of a fusion protein; and
,ii. changing an amino acid within the junction region to reduce the ability of the candidate T-cell epitope to interact with a T cell receptor.
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Accused Products
Abstract
Disclosed are compositions and methods for producing fusion proteins with reduced immunogenicity. Fusion proteins of the invention include a junction region having an amino acid change that reduces the ability of a junctional epitope to bind to MHC Class II, thereby reducing its interaction with a T-cell receptor. Methods of the invention involve analyzing, changing, or modifying one or more amino acids in the junction region of a fusion protein in order to identify a T-cell epitope and reduce its ability to interact with a T cell receptor. Compositions and methods of the invention are useful in therapy.
101 Citations
41 Claims
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1. A method for reducing the immunogenicity of a fusion protein, the method comprising:
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i. identifying a candidate T-cell epitope within a junction region spanning a fusion junction of a fusion protein; and
,ii. changing an amino acid within the junction region to reduce the ability of the candidate T-cell epitope to interact with a T cell receptor.
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2-17. -17. (canceled)
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18. A nucleic acid encoding a fusion protein with reduced immunogenicity comprising;
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a non-immunoglobulin protein and an immunoglobulin protein fused to said non-immunoglobulin protein via a fusion junction, wherein the amino acid sequence of a junction region surrounding the fusion junction is modified by substitution or deletion of one or more amino acids to remove a non-self T-cell epitope. - View Dependent Claims (26, 27, 31, 32, 33, 38, 39, 40, 41)
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19-25. -25. (canceled)
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28-30. -30. (canceled)
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34-37. -37. (canceled)
Specification