Polyacrylamide gel electrophoresis of the alkaline phosphatase of rat dental pulp.

Judging from the mobility after the sodium dodecyl sulphate-gel electrophoresis, the mol. wt of the dental pulp enzyme was estimated to be 125,000-130,000. The electrophoretic behaviour of this enzyme was identical with that of calvarial phosphatase but not with those of kidney and intestinal enzymes. These results suggest that the dental pulp enzyme has a similar molecular structure to bone alkaline phosphatase.