The S100A1 (4C4.9) Mouse mAb Antibody from Cell Signaling Technology is a Mouse Monoclonal antibody to S100A1. This antibody recognizes Homo Sapiens, and Human antigen. The S100A1 (4C4.9) Mouse mAb Antibody has been validated for the following applications: Immunohistochemistry, and Immunohistochemistry - fixed.