Table 1

Summary of peptides identified with a PeptideProphet P score ≥0.9

Peptide
Counts
Percentage

Total assignment above threshold
800,507

Total correct assignment
791,069

Total incorrect assignment
9,438

Spectrum assignment false discovery rate
0.012




Total distinct peptides
13,779
100.00
Distinct peptides mapped to human genome
13,461
97.69
Possible proteins implicated in mapping
10,674

Simple reduced proteins
4,084

Simple reduced genes
3,580

Unambiguously mapped proteins
1,590




Total distinct peptides, presented in ≥2 samples
9,170
66.55
Total singleton distinct peptides
4,609
33.45
Cys-containing distinct peptides
3,709
26.92
Trp-containing distinct peptides
2,067
15.00
Lys-containing distinct peptides
8,392
60.90



Total distinct peptides from colon cancer versus normal
5,958

Total distinct peptides from breast cancer versus normal
8,874

Total distinct peptides from pancreatic cancer versus normal
7,753

Total distinct peptides from ovarian cancer versus normal
5,368

Total distinct peptides in all four reference sets
2,897
21.02
Total distinct peptides in three reference sets
1,534
11.13
Total distinct peptides in two reference sets
2,415
17.53

Zhang et al. Genome Biology 2008 9:R93   doi:10.1186/gb-2008-9-6-r93

Open Data