An antibody that can attach to both an antigen and complement proteins, thereby linking a pathogen to the immune system's destruction machinery.
From Latin 'ambo' (both) + 'capere' (to take, seize) + English '-or' (agent noun). Coined by immunologists in the early 1900s to describe this dual-binding function.
The amboceptor is basically the immune system's matchmaker—it brings together the pathogen and the complement (the killer proteins) so they can destroy the invader together.
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