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Preserving primary cDNA libraries.

D M Klinman, D I Cohen

    Analytical Biochemistry
    |February 15, 1987
    PubMed
    Summary
    This summary is machine-generated.

    This study presents a method for long-term storage of primary complementary DNA (cDNA) libraries using glycerol and freezing. This technique enables easy retrieval and identification of specific DNA sequences from stored cDNA libraries.

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    Area of Science:

    • Molecular Biology
    • Genomics
    • Biotechnology

    Background:

    • Storing complementary DNA (cDNA) libraries long-term is crucial for genetic research.
    • Maintaining the viability of bacteriophage vectors in cDNA libraries presents a challenge for extended storage.

    Purpose of the Study:

    • To develop and describe a reliable method for the long-term storage of primary cDNA libraries.
    • To ensure the integrity and retrievability of specific DNA sequences within stored libraries.

    Main Methods:

    • cDNA libraries were constructed using the lambda gt 10 cloning vector.
    • Libraries were plated on host bacteria in top agarose with 30% glycerol.
    • Nitrocellulose lifts were prepared for screening, and plated libraries were stored at -70°C.

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    Main Results:

    • The combined method of glycerol supplementation and low-temperature storage (-70°C) maintained bacteriophage viability.
    • Stored libraries allowed for later screening to identify specific cDNA inserts.
    • Bacteriophage viability exceeded 1 year under these storage conditions.

    Conclusions:

    • The described technique provides an effective solution for long-term preservation of primary cDNA libraries.
    • This method facilitates the identification and retrieval of relevant DNA sequences, supporting ongoing research.
    • The storage protocol enhances the utility of cDNA libraries for future molecular biology applications.