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. 1971 Jun;68(6):1331–1335. doi: 10.1073/pnas.68.6.1331

A Polynucleotide Segment Rich in Adenylic Acid in the Rapidly-Labeled Polyribosomal RNA Component of Mouse Sarcoma 180 Ascites Cells

Se Yong Lee 1,*, Jozef Mendecki 1,†, George Brawerman 1,‡
PMCID: PMC389183  PMID: 5288382

Abstract

The rapidly-labeled polyribosomal RNA component from mouse sarcoma 180 cells is retained on nitrocellulose (Millipore) membrane-filters at high ionic strength. This property is due to the presence of a polynucleotide sequence rich in adenylic acid that resists both T1 and pancreatic RNase digestion. The resistant material shows sedimentation characteristics close to those of transfer RNA. The RNA molecules that contain this material can be separated from the rest of the polysomal RNA by differential phenol extraction with neutral and alkaline Tris buffers. Synthetic poly(A) exhibits the same behavior as the rapidly-labeled polysomal RNA with respect to Millipore binding and phenol fractionation. The characteristics of the rapidly-labeled polysomal RNA component permit its isolation free of ribosomal RNA.

Keywords: poly(A), Millipore

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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