Database Search Exercises

List of Exercises

If you find an exercise too difficult, first follow the link for hints. If these don't help, or there aren't any, and you are really stuck, there may be links to example search results.

Peptide Mass Fingerprint

Exercises

1. Simple PMF
2. Tricky PMF
3. Can you get a match?
4. Mixture

PMF search engines on the web

• Bupid
• Mascot
• MS-Fit
• Profound

Sequence Tag

Exercises

1. Easy sequence tag
2. Tricky sequence tag

Sequence tag search engines on the web

• Mascot
• MS-Seq

Uninterpreted MS/MS Search

Exercises

1. Phosphopeptides
2. Target-decoy
3. Unsuspected modifications
4. Protein inference
5. ETD spectra
6. High precursor accuracy
7. BSA standard
8. Squeeky clean?

MS/MS search engines on the web

• InsPecT, MS-GFDB
• Mascot
• MS-Tag
• RAId_DbS
• Sonar
• X!Tandem