P4P: Peptidomes for Phylogenies
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P4P (pronounced “pie for pie”) is a bioinformatics web service which has been conceived for bacterial strain classification based on peptide datasets. These peptide datasets are obtained from proteins by the in silico action of the three main human gut endoproteases (pepsin, trypsin and chemotrypsin). Peptides can be filtered by isolectric point, subcellular location, or amino acid length. DOI: 10.1093/nar/gkx389
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Try upload your own data (in silico or m/z profile data)
Upload your own data: in silico or m/z profile project. Note that projects cannot contain more than 30 strains. Take a look at some demo projects by clicking here.
Generate all NEXUS files you want. P4P allows you to specify the size of peptides, their subcellular localization or isoelectric points.
We use MrBayes to automatically generate bayesian trees for your nexus files. You can download or visualize them on our tool.
This work was financed by the Spanish Programa Estatal de Investigación, Desarrollo e Inovación Orientada a los Retos de la Sociedad (grant AGL2013-44039R), by the Plan galego de investigación, innovación e crecemento 2011-2015 (grant EM2014/046), and by the [14VI05] Contract-Programme from the University of Vigo.
P4P team relies on your feedback. If you have any questions, suggestions or bug reports please contact us using the form bellow. We will respond as soon as possible.