Evaluation of an Alkaline Lysis Method for the Extraction of DNA from Whole Blood and Forensic Stains for STR Analysis

    Volume 45, Issue 3 (May 2000)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Page Count: 5


    Neuhuber, F
    Institute of Legal Medicine, University Graz,

    Klintschar, M
    Institute of Legal Medicine, University Graz,

    (Received 23 November 1998; accepted 2 August 1999)

    Abstract

    A modified alkaline lysis protocol for extracting DNA from forensically relevant specimens is evaluated and compared with the chelex 100 method. For whole blood, bloodstains and sperm stains, both methods yielded comparable results after amplification for a pentameric STR locus (HumCD4). The main advantages of the new method are: only approximately ten minutes and two pipetting steps are necessary and the expenses for the extraction are extremely low as only NaOH, TrisHC1 buffer and a single microcentrifuge tube are required. Alkaline lysis also proved to yield DNA suitable for typing longer STRs by using dye-labeled primers and capillary electrophoresis. These advantages should render this protocol especially interesting for high-throughput laboratories in combination with multiplex PCR and fluorescent dye technology, although the storability of the extracts proved to be problematic.


    Paper ID: JFS14745J

    DOI: 10.1520/JFS14745J

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    Title Evaluation of an Alkaline Lysis Method for the Extraction of DNA from Whole Blood and Forensic Stains for STR Analysis
    Symposium , 0000-00-00
    Committee E30