1 ochondrial extract of rat cerebral cortex by oligo(dT)-cellulose affinity chromatography.

2 nfirmed by immunoblotting fractions bound to oligo(dT)-cellulose and separated by rate sedimentation

3 ined further by a useful technique involving oligo(dT)-cellulose chromatography and antisense oligonu

4 the presence of poly(A) tracts by binding to oligo(dT) cellulose followed by hybridization with speci