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  • Title: Map of restriction sites on bacteriophage T4 cytosine-containing DNA for endonucleases bamHI, BglII, KpnI, PvuI, SalI, and XbaI.
    Author: Marsh RC, Hepburn ML.
    Journal: J Virol; 1981 Apr; 38(1):104-14. PubMed ID: 6264096.
    Abstract:
    A complete map of the cleavage sites of restriction endonucleases BamHI, BglII, KpnI, PvuI, SalI, and XbaI was determined for the cytosine-containing DNA of a bacteriophage T4 alc mutant. The 56 sequence-specific sites were assigned map coordinates based on a least-squares analysis of measured fragment lengths. Altogether, the lengths of 118 fragments from single and double enzyme digestions were measured by electrophoresis of the fragments in agarose gels. DNA fragments of known sequence or DNA fragments calibrated with fragments of known sequence were used as standards. The greatest deviation between an experimentally measured fragment length and its computed map coordinates was 3.0%; the average deviation was 0.8%. The total length of the wild-type T4 genome was calculated to be 166,200 base pairs.
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