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Table 2 True positive rate at mass tolerance of 0.04 Da.

From: Identification of arginine- and lysine-methylation in the proteome of Saccharomyces cerevisiae and its functional implications

Type of methylation True positive rate (%) No. of methylation sites correctly matched No. of methylation sites tested No. of peptides tested
a) Non-redundant known mono- and di-methylation
Monomethyl-K 100 27 466 1,201
Dimethyl-K 98 89 280 699
Monomethyl-R N.D.a N.D.a 3 6
Dimeth-R 76 28 137 495
b) Artificial mono- and di-methylation
Monomethyl-K 78 217 11,377 30,782
Dimethyl-K 89 3,673 11,377 30,691
Monomethyl-R 90 453 6,941 18,728
Dimethyl-R 90 2,140 6,902 18,594
  1. a: N.D. - not determined