n-CoDeR concept: unique types of antibodies for diagnostic use and therapy

Abstract

The n-CoDeR™ recombinant antibody gene libaries are built on a single master framework, into which diverse in vivo-formed complementarity determining regions (CDRs) are allowed to recombine. These CDRs are sampled from in vivo-processed and proof-read gene sequences, thus ensuring an optimal level of correctly folded and functional molecules. By the modularized assembly process, up to six CDRs can be varied at the same time, providing a possibiltiy for the creation of a hitherto undescribed genetic and functional variation. The n-CoDeR antibody gene libaries can be used to select highly specific, human antibody fragments with specificities to virtually any antigen, including carbohydrates and human self-proteins and with affinities down into the subnanomolar range. Furthermore, combining CDRs sampled from in vivo-processed sequences into a single framework result in molecules exhibiting a lower immunogenicity compared to normal human immunoglobulins, as determined by computer analyses. The distinguished features of the n-CoDeR libaries in the therapeutic and diagnostic areas are discussed.

• antibody engineering
• antibody library
• CDR
• scFv
• selection
• theraputic antibody