Institute of Chemistry – The Hebrew University of Jerusalem     http://chem.ch.huji.ac.il/

The Hebrew University of Jerusalem  http://www.huji.ac.il

Protease digest peptide masses  https://web.expasy.org/peptide_mass/

Compute pI and Mw for proteins by sequence https://web.expasy.org/compute_pi/

BAChem Peptide Calculator https://www.bachem.com/knowledge-center/peptide-calculator/

UniProt (Protein Sequence Database) http://www.uniprot.org

ISI Web of Knowledge  http://isiknowledge.com

PubMed http://www.ncbi.nlm.nih.gov/pubmed

The Bordwell pKa Tables http://www.chem.wisc.edu/areas/reich/pkatable/

Stephen Kent Lab (University of Chicago) https://chemistry.uchicago.edu/faculty/stephen-kent

Don Hilvert Lab (ETH Zurich) http://www.protein.ethz.ch

Phil Dawson Lab (Scripps, La Jolla, CA) http://www.scripps.edu/dawson/?Home

Ehud Keinan Lab (Technion, Israel) http://ehudkeinan.com/

LABSUIT  https://www.labsuit.com/