Creatine kinase ELISA kits are assays designed to detect the enzyme creatine kinase (CK), also known as creatine phosphokinase (CPK). It catalyzes the phosphorylation of creatinine, forming phosphocreatine. CK is present in high amounts in the heart, brain, and skeletal muscles. CK enzymes have two subunits – B (brain type) and M (muscle type), resulting in 3 isoenzymes CK-MM, CK-BB and CK-MB. Creatine kinase is used as an indicator of heart attacks, muscular dystrophy, and acute kidney injury. Visit the supplier page for more information about detection target, range, and reactivity.