“…Under these conditions thyroidal cAMP-dependent protein kinases were recovered in 2 peaks: type I kinase corresponds to peak 1 which sediments at 4.9 S; type II kinase corresponds to peak 2, which sediments at 6.2 S [ 18,20]. For the estimation of sedimentation coefficients, myoglobin (S2o,w = 2) and glucose-oxidase (S2o,w = 7.93) were used as internal markers.…”