Anti-KCNH2 (HERG) (extracellular) Antibody (#APC-109) is a highly specific antibody directed against an extracellular epitope of the human KV11.1 channel. The antibody can be used in western blot, immunoprecipitation, immunohistochemical, immunocytochemical and indirect flow cytometry applications. It has been designed to recognize KV11.1 from human, rat, and mouse samples.