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PMAP, PMAPS: DNA physical map constructing programs.

G Polner, L Dorgai, L Orosz

    Nucleic Acids Research
    |January 11, 1984
    PubMed
    Summary
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    New computer programs help create DNA restriction site maps by analyzing fragment lengths and digestion errors. This efficient method maps linear DNA, successfully charting complex bacteriophage chromosomes.

    Area of Science:

    • Molecular Biology
    • Bioinformatics
    • Genomics

    Background:

    • Restriction site mapping is crucial for understanding DNA.
    • Accurate physical maps are essential for genomic analysis.
    • Existing methods can be computationally intensive or limited in scope.

    Purpose of the Study:

    • To develop and present novel computer programs for DNA restriction site mapping.
    • To provide a method for generating all possible physical maps based on experimental data.
    • To demonstrate the efficiency and applicability of these programs for complex DNA molecules.

    Main Methods:

    • Utilizing computational algorithms to process DNA fragment length data from single and double restriction enzyme digests.
    • Incorporating error analysis for fragment lengths to refine mapping possibilities.

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  • Applying the developed programs to linear DNA molecules, including bacteriophage chromosomes.

    • Main Results:

    • The computer programs successfully generate all potential restriction site maps.
    • The method accounts for experimental errors in fragment length determination.
    • Demonstrated high efficiency in mapping the 62 Kb bacteriophage 16-3 chromosome.
    • Successfully constructed complex EcoRI (16 fragments) and EcoRV (11 fragments) maps.

    Conclusions:

    • The developed computational tools significantly facilitate the construction of accurate DNA restriction site maps.
    • This approach is robust and applicable to complex genomic structures.
    • The programs offer a powerful solution for researchers in molecular biology and bioinformatics.