Intensity-based statistical scorer for tandem mass spectrometry.
We describe a new statistical scorer for tandem mass spectrometry. The scorer is based on the probability that fragments with given chemical properties create measured intensity levels in the experimental spectrum. The scorer's parameters are computed using a fully automated procedure. Benchmarking the new scorer on a large set of experimental spectra, we show that it performs significantly better than the widely used cross-correlation scoring algorithm of Eng et al. (Eng, J. K; McKormack, A. L.; Yates, J. R. J. Am. Soc. Mass Spectrom. 1994, 5, 976-989.).
Havilio
Moshe
M
Compugen Limited, 72 Pinhas Rozen Street, Tel Aviv, 69512 Israel. moshe@compugen.co.il
Haddad
Yariv
Y
Smilansky
Zeev
Z
D013058:Mass Spectrometry / Q000379:methods*; D011506:Proteins / Q000032:analysis
D011506:Proteins