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Reconstitution of RNase P activity from inactive RNA and protein.

RNase P preparations from Escherichia coli can be separated into RNA and protein by chromatography, in buffers containing 7 M urea, on Sephadex G-200, DEAE-Sephadex, or CM-Sephadex columns. Neither RNA nor protein components alone exhibits any RNase activity. RNase P activity can be reconstituted by mixing separated RNA and protein components in buffer containing 7M urea followed by dialysis of this mixture to remove the urea. Of several purified RNAs tried, only M2 RNA, the RNA species found in purified RNase P, is active in the reconstitution experiments.[1]


  1. Reconstitution of RNase P activity from inactive RNA and protein. Kole, R., Altman, S. Proc. Natl. Acad. Sci. U.S.A. (1979) [Pubmed]
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