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Methods Mol Biol. 2010;604:43-53. doi: 10.1007/978-1-60761-444-9_4.

Scoring and validation of tandem MS peptide identification methods.

Author information

1
The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK.

Abstract

A variety of methods are described in the literature to assign peptide sequences to observed tandem MS data. Typically, the identified peptides are associated only with an arbitrary score that reflects the quality of the peptide-spectrum match but not with a statistically meaningful significance measure. In this chapter, we discuss why statistical significance measures can simplify and unify the interpretation of MS-based proteomic experiments. In addition, we also present available software solutions that convert scores into sound statistical measures.

PMID:
20013363
DOI:
10.1007/978-1-60761-444-9_4
[Indexed for MEDLINE]

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