Dissociation method and dissociator for avidin and biotin derivative

摘要

A method for dissociating avidin or streptavidin efficiently from a biotin derivative, thereby making it possible to isolate a target material efficiently under a mild condition in a short period, and a dissociation agent for use thereof, are provided. The method for dissociating avidin or streptavidin from a biotin derivative, includes mixing a combination of avidin or streptavidin with desthiobiotin with a water-soluble polymer to which biotin or a derivative thereof is bound.