Dual specific antibodies for binding interleukin 4 (IL4) and interleukin 5 (IL5)

Abstract

The invention provides dual specific antibodies capable of binding interleukin 4 (IL4) and interleukin 5 (IL5) and methods of making and using such antibodies. In general, the dual specific antibodies capable of binding IL4 and IL5 are generated by identification of a monospecific antibody having light chain variable region VL residues that are electrostatic or hydrophobic and altering the nucleic acid sequence encoding one or more solvent accessible residues in the VH of the antibody either alone or in combination with alteration of the nucleic acid sequence encoding the VL of the antibody. The altered VH and the VL are expressed and dual specific antibodies, or antigen-binding fragments thereof, are selected.

Dependencies are inferred from the claim text.