when translated in an optimized wheat germ extract cell-free system , unfractionated guanidine-hydrochloride-extracted poly ( a ) -rich rna directed the synthesis of two collagenase-sensitive protein bands , while phenol-extracted poly ( a ) -rich rna with a sedimentation coefficient higher than 25 s was the only fraction to direct the same synthesis .
C0597295
synthesis
C0035668
rna