DETECTION OF A POSTTRANSLATIONALLY MODIFIED POLYPEPTIDE BY A BI-VALENT BINDING AGENT

摘要

The present invention relates to a bi-valent binding agent consisting of a first monovalent binder that binds to a polypeptide epitope of a target polypeptide, a second monovalent binder that binds to a posttranslational polypeptide modification on the target polypeptide and a linker. Further disclosed is a method for the detection of a posttranslationally modified target polypeptide by aid of such bi-valent binding agent, a method of making such bi-valent binding agent and the use of such bi-valent agent in histological staining procedures.