PeptIdent is a tool that allows the identification of proteins using
pI, Mw and peptide mass
Experimentally measured, user-specified peptide masses are compared with the theoretical peptides calculated for all proteins in the Swiss-Prot/TrEMBL databases. A species (or group of species)
can also be specified for the search.
PeptIdent makes extensive use of the annotations in Swiss-Prot:
Results are displayed on-line in your browser window or can be sent by email,
in form of a html table. The email option is recommended, especially for
queries with many peptide masses, large pI/Mw windows or all species.
When calculating the theoretical peptides from Swiss-Prot,
PeptIdent removes signal sequences and/or propeptides
(as documented in the
Swiss-Prot feature table (FT lines)) before computing pI, Mw
and peptide masses for each of the resulting chains.
- The program takes into account
post-translational modifications and alternative splicing events as documented in Swiss-Prot.
The result file contains direct links to FindMod, GlycoMod and FindPept, to further characterize matching proteins by predicting potential protein post-translational modifications and finding potential single amino acid
substitutions or non-specific cleavage,
and to PeptideMass. It further contains,
for each matching protein, a link to the BioGraph tool which allows to graphically represent the results of the PeptIdent query.
Note: PeptIdent has been designed for Netscape 3.0, Internet Explorer 3.0 or better. Should you be using an older version, we highly
recommend you upgrade your browser in order to enjoy the full functionality of the program.
Documentation is available.
Last modified 14/Jun/2002 by ELG