25 mM
Tris-HCl (pH7.9)
500 mM
NaCl
1 mM
EDTA
0.1 mM
DTT
50%
Glycerol
50 mM
10 mM
MgCl2
2.5 mM
MnCl2
250 mM
0.05%
BSA
400 §¶/§¢
tRNA
[3H]ATP
0
5
10
30
60
Poly(A) bases
20
40
75