Abstract
Abstract Escherichia coli transfer RNAs have been separated by chromatography on 5–20 μm beads of divinylsulfone-crosslinked agarose with the use of isocratic elution combined with a negative salt gradient. For example, tRNALeu was resolved into six isoacceptor species and tRNASer into four. Leucine-charged tRNA's were eluted after their corresponding uncharged isoacceptor species. By optimizing flow rate, column length and elution buffer the fractionation of tRNA could be performed within 3 hours.
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