ISOLATION AND CHARACTERIZATION OF RIBOSOMAL RIBONUCLEIC ACID - PubMed (original) (raw)

ISOLATION AND CHARACTERIZATION OF RIBOSOMAL RIBONUCLEIC ACID

K S KIRBY. Biochem J. 1965 Jul.

Abstract

1. Ribosomal RNA has been prepared by extracting tissues with a phenol-cresol mixture, and ribosomal RNA can be selectively precipitated with m-cresol. No rapidly labelled RNA was associated with this material. 2. However, if RNA and DNA are extracted with 4-aminosalicylate and phenol-cresol mixture and the nucleic acids precipitated, DNA, glycogen and s-RNA (transfer RNA) can be extracted with 3m-sodium acetate and in this case rapidly labelled RNA remains associated with the ribosomal RNA. 3. The ribosomal RNA is stable in the presence of concentrated salt solution and, although the secondary structure is lost by heating at 70 degrees in 10mm-sodium acetate, it can be re-formed in the presence of 200mm-sodium acetate. 4. The 28s and 18s components have been separated and their base compositions determined.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Biochem J. 1956 Nov;64(3):405-8 - PubMed
    1. Biochem J. 1957 Jul;66(3):495-504 - PubMed
    1. Virology. 1961 May;14:54-8 - PubMed
    1. Arch Biochem Biophys. 1962 Aug;98:214-23 - PubMed
    1. J Mol Biol. 1963 Sep;7:312-5 - PubMed

MeSH terms

Substances

LinkOut - more resources