Abstract:Poly(A)-containing 9S RNA from chick reticulocytes was electrophoresed on formamide-polyacrylamide gels. The molecular weight was determined to be 211 000 +/- 10 000 daltons. The RNA was separated into three different fractions with respect to molecular weight. These RNAs were translated in a wheat germ cell-free system. The lower molecular weight RNA directed up to 95% alpha-chain synthesis, compared to 60% for the higher molecular weight RNA. This was accompanied by a relative increase for beta-chain synthes… Show more
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