both casein kinase i and casein kinase ii complexes are unstable in 0.5 m nacl , giving rise by gel filtration under these conditions to the free forms of casein kinase s ( ve/vo = 2.37 , mr 34 000 ) and casein kinase ts ( ve/vo = 2.10 , mr 130 000 ) , respectively .
C0108554
casein kinase i
C0054846
casein