Creatine Kinase Reaction Mechanism
Creatine kinase ck also known as creatine phosphokinase cpk or phosphocreatine kinase is an enzyme ec 2 7 3 2 expressed by various tissues and cell types ck catalyses the conversion of creatine and uses adenosine triphosphate atp to create phosphocreatine pcr and adenosine diphosphate adp.
Creatine kinase reaction mechanism. Found in all vertebrates creatine kinase catalyzes the reversible reaction of creatine and atp forming phosphocreatine and adp. Both compounds play an important role in energy metabolism in skeletal muscle through participation in the creatine kinase ck reaction. Properties and reaction with iodoacetamide of adenosine 5 triphosphate creatine phosphotransferase from human skeletal muscle. Creatine cr and its analog phosphocreatine pcr are naturally occurring compounds found in human tissues.
Phosphocreatine may be viewed as a reservoir of high energy. Phosphocreatine pcr magnesium mg adenosine 5 diphosphate adp h creatine mg atp. Relating structure to mechanism in creatine kinase. Creatine kinase catalyzes the near equilibrium reaction transferring a phosphoryl group between atp and creatine without loss of free energy.
Found in all vertebrates creatine kinase catalyzes the reversible reaction of creatine and atp forming phosphocreatine and adp. This ck enzyme reaction is reversible and thus atp can be generated from pcr and adp.