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A new universal linker for solid phase DNA synthesis

M H Lyttle1, D Hudson, R M Cook

  • 1Biosearch Technologies Inc., San Rafael, CA 94903, USA.

Nucleic Acids Research
|July 15, 1996
PubMed
Summary
This summary is machine-generated.

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This study introduces a novel solid support for DNA synthesis, simplifying the creation of DNA fragments with 3'-OH termini. This method offers an efficient alternative to traditional approaches, ensuring product integrity for applications like PCR amplification.

Area of Science:

  • Organic Chemistry
  • Biochemistry
  • Molecular Biology

Background:

  • Traditional DNA synthesis relies on pre-functionalized nucleoside supports.
  • Generating DNA fragments with specific terminal modifications can be complex.
  • A need exists for versatile and efficient DNA synthesis methodologies.

Purpose of the Study:

  • To present a novel method for DNA synthesis using a single derivatized solid support.
  • To enable the generation of DNA fragments with 3'-OH terminal moieties.
  • To provide an alternative to nucleoside pre-functionalized supports in DNA synthesis.

Main Methods:

  • Utilized a derivatized solid support: 1-O-(4,4' dimethoxytrityl)-2-O-succinoyl-3-N-allyloxycarbonylpropane immobilized on amino-propyl CPG.
  • Employed subsequent coupling of unit phosphoramidites.

Related Experiment Videos

  • Developed a work-up procedure involving deprotection with Pd(0) and mild cleavage conditions (aqueous TEAA/NH3 buffer).

    • Main Results:

    • Successfully generated DNA fragments with 3'-OH terminal moieties using the novel support.
    • Demonstrated identical DNA synthesis products compared to classical nucleotide synthesis supports.
    • Confirmed product integrity through MALDI mass spectral analysis and successful PCR amplification using synthesized DNA primers.

    Conclusions:

    • The described method provides a versatile and efficient alternative for DNA synthesis.
    • The novel support simplifies the generation of DNA fragments with 3'-OH termini.
    • The integrity and efficacy of DNA synthesized using this method are validated for downstream applications like PCR.