Welcome to PKA17:
the Kaminski Lab's grid-based pKa calculator for proteins
Please provide:
A protein structure file in .pdb format (containing the 20 standard residues only).
Any optional information as indicated below.
Then click the Submit button.
NOTE: any requested information is for usage statistics only. We will NEVER send unsolicited messages.
The calculated pKa for EACH common ionizable residue of the input structure (and any error messages) should then be displayed.