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Welcome to the GPMDB wiki site. GPMDB contents (2022.05.20)

The Generalized Proteoform Meta-analysis Database was constructed to utilize the information obtained by GPM servers to aid in the difficult process of validating peptide MS/MS spectra as well as protein coverage patterns. This database has been integrated into GPM server pages, allowing users to quickly compare their experimental results with the best results that have been previously observed by other scientists.

The GPM is a user interface that allows scientists to run protein identifications searches and interpret the results of the searches. It currently supports three different search engines:

  1. X! Tandem - a conventional protein identification search engine;
  2. X! P3 - a search engine that uses proteotypic peptides; and
  3. X! Hunter - an annotated spectrum library search engine.


models = 574,683
proteins = 1,376,854,998
distinct proteins = 3,671,712
protein redundancy = 375.0 ×
peptides = 13.422 gigaTabbs
distinct peptides = 22,029,229
peptide redundancy = 609.3 ×
AA residues = 187,902,079,134
Build # = 6,680

Some of the most popular topics on this site are as follows:

  1. GPMDB Data Sources: where we get data from and a list of papers associated with that data;
  2. GPMDB REST API: annotation and instructions on how to use the GPMDB REST API;
  3. g2pDB REST API: annotation and instructions on how to use the g2pDB REST API;
  4. PTM annotation: a comprehensive reference to how we annotate PTMs;
  5. Amino acids: a list of amino acids found in proteins;
  6. GPMDB evidence codes: an explanation of the GPMDB evidence code system; and
  7. JSMS: JSMS JSON Lines MS/MS file format.
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