Table 1.

Statistics of the three large-scale mass spectrometric yeast proteomics studies

				Proteins identified
Proteomic approach	Protein amount	Number of fractions	Unique peptides	1 Upep	>2 Upeps	Total
LC-MS (MudPIT)	1.4 mg	45	5,540	636	848	1,484
LC/LC-MS/MS	1.0 mg	80	7,537	513	991	1,504
GeLC-MS/MS	0.1 mg	20	20,893	NA	2,003	2,003

MudPIT refers to Washburn et al. [14], LC/LC-MS/MS refers to Peng et al. [15] and GeLC-MS/MS refers to work presented in this study. NA, not applicable; Upep, unique peptide.