upon exposure of rabbit muscle creatine kinase ( atp : creatine n-phosphotransferase , ec 2.7.3.2 ) that has been dansylated at the two reactive lysines to 8 m urea , the maximum emission of the extrinsic fluorophore shifts 4 nm towards the blue , this being accompanied by a small decrease in intensity .
C0010291
muscle creatine kinase
C0010287
creatine