I have a list of a thousand residues identified on uniprot proteins. I need to gather features of these residues for a classifier. Some features require protein structures. I have a pipeline for finding appropriate structures using the protein model portal, and calculating structure based features (pka, solvent accessibility, disorder, local charge, etc) using published tools. It took a lot of work to scrape the structures and trouble shoot the published tools. I would have rather used pre computed data, but I could not find such a database.
Are you aware of a protein feature database that spans all uniprot proteins? If not, do you know why such a resource has not been built?
2 answers
I wrote a feature generation program/script a while ago in python that can do a lot of this, it's very fast and local, so just run it against the fastas of the proteins you want.
(I'm currently working on a much upgraded version).
Here's the source code.
http://www.protonet.cs.huji.ac.il/neuropid/code/index.php
http://www.protonet.cs.huji.ac.il/neuropid/code/local_SLEEK_FeatureGen+_new.py
Dan
(Used in: http://neuropid.cs.huji.ac.il/ and the articles).
A few databases that have protein structural features are UniProt, the RCSB PDB, and the G2P portal
Structural features from each database:
- UniProt: PDB SIFTS secondary structures, AlphaFold confidence
- RCSB PDB: UniProt features, Hydropathy, Disorder, Occupancy, RSR, Buried Residues, etc
- G2P portal: UniProt features, Hydropathy, Molar mass, Secondary Structure (AlphaFold only), pockets (AlphaFold only), ASA (AlphaFold only), Disulfide bridge/H-bonds/Vander waals/Salt bridges (PDB and AlphaFold)
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