Figure 3
From: Integration with the human genome of peptide sequences obtained by high-throughput mass spectrometry
Cumulative number of distinct peptides as a function of the addition of more good spectra (identified with P ≥ 0.9). Eventually the pattern is expected to show saturation, as most observable peptides will have been cataloged. However, at present there is no evidence of saturation and around 100 new peptides are still cataloged per 1,000 identified spectra added.