Seagen Inc.
Bivalent antibodies masked by coiled coils

Abstract:

The invention provides bivalent antibodies including two light and heavy chain pairs. The N-termini of one or both light and heavy chain pairs are linked via linkers comprising a protease cleavage site to coiled-coil forming peptides that associate to form a coiled coil reducing binding affinity of at least one light-heavy chain pair to a target.