p38 MAPK is activated by phosphorylation at Thr180 and Tyr182 in response to both inflammatory cytokines and stress, making it an important enzyme in diseases like asthma and autoimmunity, as well as in the stress response of the nervous system. Cayman's p38 Cell-Based Phosphorylation/Translocation Assay provides a highly specific phospho-p38 MAPK (phospho-Thr180 and Tyr182) primary antibody together with a DylightTM (product of Thermo Scientific) conjugated secondary antibody in a ready-to-use format. Thrombin, which has been shown by scientists at Cayman's to cause the translocation of phospho-p38 MAPK (phospho-Thr180 and Tyr182) into nuclei, is included as a positive control.