DOI QR코드

DOI QR Code

Sequence Coverage Enhancement Using Magnetic Nanoparticles in Matrix-Assisted Laser Desorption/Ionization Mass Spectrometric Protein Analysis

  • Park, Eun-Hye (Department of Chemistry, Seoul National University) ;
  • Song, Jin-Su (Department of Chemistry, Seoul National University) ;
  • Kim, Hie-Joon (Department of Chemistry, Seoul National University)
  • 투고 : 2011.11.30
  • 심사 : 2012.01.18
  • 발행 : 2012.03.20

초록

Magnetic nanoparticles (MNPs) treated with phosphoric acid were used to improve sequence coverage in protein identification by matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS). Sample solution of tryptic peptides from proteins was mixed with the MNPs, and the MNPs were separated from the supernatant using a magnet. MALDI mass spectra obtained separately from the supernatant and the MNPs were distinctly different and complementary to each other. Combination of the two spectra led to a significantly increased sequence coverage.

키워드

참고문헌

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피인용 문헌

  1. Protein Analysis Using a Combination of an Online Monolithic Trypsin Immobilized Enzyme Reactor and Collisionally-Activated Dissociation/Electron Transfer Dissociation Dual Tandem Mass Spectrometry vol.33, pp.10, 2012, https://doi.org/10.5012/bkcs.2012.33.10.3233