Journal of the American Society for Mass Spectrometry

, Volume 19, Issue 9, pp 1275–1280 | Cite as

QCAL—a novel standard for assessing instrument conditions for proteome analysis

  • Claire E. Eyers
  • Deborah M. Simpson
  • Stephen C. C. Wong
  • Robert J. Beynon
  • Simon J. Gaskell
Short Communication


If proteome datasets are to be collated, shared, and merged for higher level proteome analyses, there is a need for generally accepted strategies and reagents for optimization and standardization of instrument performance. At present, there is no single protein or peptide standard set that is capable of assessing instrument performance for peptide separation and analysis in this manner. To create such a standard, we have used the recently described QconCAT methodology to generate an artificial protein, QCAL. This protein, a concatenation of tryptic peptides that is expressed in E. coli, provides a stoichiometrically controlled mixture of peptides that are amenable to analysis by all commonly used instrumentation platforms for proteomics.


Peptide Tryptic Peptide Instrument Resolution Homoarginine Artificial Protein 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© American Society for Mass Spectrometry 2008

Authors and Affiliations

  • Claire E. Eyers
    • 1
  • Deborah M. Simpson
    • 2
  • Stephen C. C. Wong
    • 1
  • Robert J. Beynon
    • 2
  • Simon J. Gaskell
    • 1
  1. 1.Michael Barber Centre for Mass SpectrometryThe University of Manchester, Manchester Interdisciplinary BiocentreManchesterUK
  2. 2.Protein and Functional Genomics Group, Department of Veterinary Preclinical Sciences, Faculty of Veterinary SciencesUniversity of LiverpoolLiverpoolUnited Kingdom

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