R&D Systems, a Bio-Techne Brand's Thymidine Kinase 1 Antibody is a Mouse monoclonal antibody. The Thymidine Kinase 1 Antibody was generated using thymidine kinase 1, and TK1 as the antigen. It reacts with Homo Sapiens, and Human. This antibody has been shown to work in applications such as: Immunocytochemistry.