The reversible reaction that CK catalyzes the energy-rich phosphate bond between ATP and creatine in vivo and transforms it into phosphocreatine and ADP, provides energy for muscle contraction and transporting systerm. 肌酸激酶(CK)催化体内ATP与肌酸之间高能磷酸键转换生成磷酸肌酸和ADP的可逆反应,为肌肉收缩和运输系统提供能量来源。