“…130 tion of acid-insoluble radioactive products from "'C-labelled nucleoside diphosphates: (i) 1-5mM-ADP, 5mM-CDP, 5mM-UDP; (ii) 1-8mM-MgCl2 and 0.2-8mM-MnCI2 (cf. Babinet et al, 1965); (iii) pH7.4, 7.8, 8.2, 8.6 and 9.0; (iv) the addition of (a) bovine serum albumin (100 and 200,ug/ml), (b) cyclic AMP (adenosine 3': 5'-cyclic monophosphate) (5,umol/ ml), (c) ApApA (100 and 200,g/ml), (d) oligo-and 40 36 32 poly-lysines and polyornithine (cf. Fitt & Wille, 1969), (e) lOmM-NaCl, (f) Triton X-100 or cetyltrimethylammonium bromide.…”