These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: DNA sequencing by delayed extraction-matrix-assisted laser desorption/ionization time of flight mass spectrometry.
    Author: Roskey MT, Juhasz P, Smirnov IP, Takach EJ, Martin SA, Haff LA.
    Journal: Proc Natl Acad Sci U S A; 1996 May 14; 93(10):4724-9. PubMed ID: 8643470.
    Abstract:
    Matrix-assisted laser desorption/ionization (MALDI) time of flight mass spectrometry was used to detect and order DNA fragments generated by Sanger dideoxy cycle sequencing. This was accomplished by improving the sensitivity and resolution of the MALDI method using a delayed ion extraction technique (DE-MALDI). The cycle sequencing chemistry was optimized to produce as much as 100 fmol of each specific dideoxy terminated fragment, generated from extension of a 13-base primer annealed on 40- and 50-base templates. Analysis of the resultant sequencing mixture by DE-MALDI identified the appropriate termination products. The technique provides a new non-gel-based method to sequence DNA which may ultimately have considerable speed advantages over traditional methodologies.
    [Abstract] [Full Text] [Related] [New Search]