[Isolation of alpha-latrotoxin from karakurt spider venom using monoclonal antibodies].

A method of alpha-latrotoxin (LT) isolation from the venom of Latrodectus mactans tredecimguttatus by means of immunoaffinity chromatography on sepharose conjugated with monoclonal antibodies against LT has been developed. This one-step, high-yield, relatively simple and rapid procedure yields active LT for structural and functional studies of its receptor.