TABLE 1.

Immunoprecipitation of α-amylase activity

Reactant additions				Activitya (U/ml)
Protein A	AmyA	Anti-AmyA	Anti-LacS	Supernatant	Pellet
−	+	−	−	34.11
+	+	−	−	28.39	<0.04
+	+	+	−	<0.04	19.71
+	+	−	+	61.56	<0.04

^aOne unit of activity equals 1 μg of starch hydrolyzed per min per ml of sample.