3.4.23.43	-	
3.4.23.43	native enzyme from membrane by detergent solubilization and immunoaffinity chromatography	
3.4.23.43	native TadV partially from Actinobacillus actinomycetemcomitans strains	
3.4.23.43	recombinant enzyme from Escherichia coli inner membrane vesicles