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Korean Society for Biochemistry and Molecular Biology (생화학분자생물학회)
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One Step Cloning of Defined DNA Fragments from Large Genomic Clones

  • Scholz, Christian (Interdisciplinary Center for Neuroscience Department of Neuroanatomy, University of Heidelberg) ;
  • Doderlein, Gabriele (Interdisciplinary Center for Neuroscience Department of Neuroanatomy, University of Heidelberg) ;
  • Simon, Horst H. (Interdisciplinary Center for Neuroscience Department of Neuroanatomy, University of Heidelberg)
  • Received : 2005.12.08
  • Accepted : 2006.03.13
  • Published : 2006.07.31
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Abstract

Recently, the nucleotide sequences of entire genomes became available. This information combined with older sequencing data discloses the exact chromosomal location of millions of nucleotide markers stored in the databases at NCBI, EMBO or DDBJ. Despite having resolved the intron/exon structures of all described genes within these genomes with a stroke of a pen, the sequencing data opens up other interesting possibilities. For example, the genomic mapping of the end sequences of the human, murine and rat BAC libraries generated at The Institute for Genomic Research (TIGR), reveals now the entire encompassed sequence of the inserts for more than a million of these clones. Since these clones are individually stored, they are now an invaluable source for experiments which depend on genomic DNA. Isolation of smaller fragments from such clones with standard methods is a time consuming process. We describe here a reliable one-step cloning technique to obtain a DNA fragment with a defined size and sequence from larger genomic clones in less than 48 hours using a standard vector with a multiple cloning site, and common restriction enzymes and equipment. The only prerequisites are the sequences of ends of the insert and of the underlying genome.

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References

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