1.1.2.4	-	
1.1.2.4	by affinity chromatography	
1.1.2.4	by centrifugation, sonication and on Ni2+-NTA column, to near homogeneity	
1.1.2.4	by fast protein liquid chromatography on hydroxylapatite and on AH-Sepharose with covalently bound 4-hydroxy-a cyanocinnamic acid	
1.1.2.4	hydroxylapatite column chromatography and 4-hydroxy-alpha-cyanocinnamic acid-AH-Sepharose column chromatography