Investigation of magnetic field effect on trypsin activity

Influence of a homogeneous magnetic field on catalytic rate is proposed as a tool for the investigation of enzyme association. Investigations were initiated with studies of the effect of a 1.4 T homogeneous magnetic field on trypsin activity at 36.5 degrees C and pH 3.3, 5.3, and 7.2, respectively. Periods of exposure were applied up to 2--7 h. No detectable change of activity was observed in any of the exposed systems when they were compared with the identical but unexposed ones.