Effect of temperature on the activity of AMP deaminase from chicken heart and skeletal muscle at different stages of development.

The effect of temperature on purified 1-day-old chicken and adult hen heart muscle AMP deaminase was studied and compared to previous studies on this enzyme from skeletal muscle. The temperature-induced changes in the kinetic parameters of the reaction were shown to be different at these 2 stages of development. This suggests the possibility of developmental changes in the isozymic pattern of AMP deaminase in the heart tissue as has already been shown for skeletal muscle.