Synthetic immunoglobulin domains with binding properties engineered in regions of the molecule different from the complementarity determining regions

摘要

An immunoglobulin variable domain or part thereof, comprising at least one structural loop region of a variable domain of the immunoglobulin heavy or light chain, said at least one structural loop region comprising at least one modification to provide a non-CDR binding site binding to an epitope of an antigen, which unmodified structural loop region does not bind to said epitope. as well as nucleic acid encoding said immunoglobulin and pharmaceutical preparations.