Molecular Biotechnology

, Volume 20, Issue 1, pp 107–118

“De novo” sequencing of peptides recovered from in-gel digested proteins by nanoelectrospray tandem mass spectrometry

Authors

    • Max Planck Institute of Molecular Cell Biology and Genetics
  • Igor Chernushevich
  • Anna Shevchenko
  • Matthias Wilm
  • Matthias Mann
Protocol

DOI: 10.1385/MB:20:1:107

Cite this article as:
Shevchenko, A., Chernushevich, I., Shevchenko, A. et al. Mol Biotechnol (2002) 20: 107. doi:10.1385/MB:20:1:107

Abstract

Proteins separated by one-dimensional or two-dimensional gel electrophoresis can be digested in-gel with trypsin and the recovered peptides can be sequenced de novo using triple quadrupole or hybrid quadrupole time-of-flight instruments equipped with a nanoelectrospray ion source. The peptide sequences determined provide useful information for identification of proteins by homology searching for cloning of the cognate genes by PCR based approaches.

Index Entries

Proteomicsnanoelectrospray mass spectrometrytandem mass spectrometryprotein sequencing

Copyright information

© Humana Press Inc 2002