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  • ΦX174 RF I DNA

    Description

    This is the double-stranded, covalently closed, circular form of ΦX174 RF I DNA (supercoiled). The molecular weight of ΦX174 RF I is 3.50 x 106 daltons and it is 5,386 base pairs in length. Greater than 90% of the molecules are RF I, and the remainder are RF II, as determined by agarose gel electrophoresis.

    DNASU is a central repository for plasmid clones and collections that may also be helpful.

    Peptide Sequence

    The ΦX174 RF I DNA is isolated from E. coli HF 4704 infected with ΦX174 am3 cs70 by a modification of the method of Godson and Vapnek (nucleotide sequenced by F. Sanger).

    Properties and Usage

    Affinity Tag

    Other

    Storage Temperature

    -20°C

    Storage Conditions

    10 mM Tris-HCl
    1 mM EDTA
    pH 8.0 @ 25°C

    References

    1. Sanger, F. et al. (1978). J. Mol. Biol.. 125, 225-246.
    2. Godson, G.N. and Vapnek, D. (1973). Biochem. Biophys. Acta. 299, 516.

    Supporting Documents

    Material Safety Datasheets

    The following is a list of Material Safety Data Sheets (MSDS) that apply to this product to help you use it safely. The following file naming structure is used to name these document files: [Product Name] MSDS. For international versions please contact us at info@neb.com.

    Datacards

    The Product Summary Sheet, or Data Card, includes details for how to use the product, as well as details of its formulation and quality controls. The following file naming structure is used to name the majority of these document files: [Catalog Number]Datasheet-Lot[Lot Number]. For those product lots not listed below, please contact NEB at info@neb.com or fill out the Technical Support Form for appropriate document.
    1. How homogeneous is the DNA/ how much is supercoiled?
    2. Are the plasmids cesium purified?

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