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PKAD-2: Expanded Database of Experimental Protein pKa Values

Computational Biophysics and Bioinformatics – Clemson University

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Experimentalists: if you do not see your data in PKAD-2, email us at delphi@clemson.edu with the details and we will include it.
Previous PKAD Database: You can access the old version here: PKAD Database

PKAD-2 database contains experimentally measured pKa values for >1500 ionizable residues in wild type as well as mutant proteins. The wild type proteins, for which structures are available in the protein databank, considered in the database and PDB ID is given. For some of the mutant proteins, structure files are not available. In these cases, PDB IDs of wild type proteins are provided. Relative solvent accessible surface area (%SASA), provided in the database, will guide user to identify surface exposed and buried residues in a given protein.

Citation:

Ancona, Nicolas, Ananta Bastola, and Emil Alexov. "PKAD-2: New Entries and Expansion of Functionalities of the Database of Experimentally Measured pKa's of Proteins." Journal of Computational Biophysics and Chemistry (2023): 1-10. doi: 10.1142/S2737416523500230

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Wild type proteins Mutant proteins

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