Heterodimeric proteins
First Claim
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1. A composition comprising a heterodimeric protein comprising a heterodimeric Fc domain comprising:
- a) a first monomer comprising a first variant Fc domain comprising amino acid substitutions L368E and K370S; and
b) a second monomer comprising a second variant Fc domain comprising amino acid substitution S364K,wherein numbering is according to the EU index as in Kabat, and wherein said first and second variant Fc domains are variant human IgG Fc domains.
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Abstract
The present invention describes novel immunoglobulin compositions that co-engage at least two antigens, e.g. a first and second antigen, or, as outlined herein, three or four antigens can be bound, in some of the scaffold formats described herein. First and second antigens of the invention are herein referred to as antigen-1 and antigen-2 respectively (or antigen-3 and antigen-4, if applicable. As outlined herein, a number of different formats can be used, with some scaffolds relying combinations of monovalent and bivalent bindings.
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Citations
16 Claims
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1. A composition comprising a heterodimeric protein comprising a heterodimeric Fc domain comprising:
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a) a first monomer comprising a first variant Fc domain comprising amino acid substitutions L368E and K370S; and b) a second monomer comprising a second variant Fc domain comprising amino acid substitution S364K, wherein numbering is according to the EU index as in Kabat, and wherein said first and second variant Fc domains are variant human IgG Fc domains. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A composition comprising a heterodimeric protein comprising a heterodimeric Fc domain comprising:
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a) a first monomer comprising a first Fc domain comprising amino acid substitutions L368E and K370S; and b) a second monomer comprising a second variant Fc domain comprising amino acid substitution S364K, wherein numbering is according to the EU index as in Kabat, and wherein said first and second variant Fc domains are variant human IgG Fc domains. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification