Sequence Manipulation Suite:
Protein Isoelectric Point
Protein Isoelectric Point calculates the theoretical pI (isoelectric point) for the protein sequence you enter. Use Protein Isoelectric Point when you want to know approximately where on a 2-D gel a particular protein will be found.

Paste the raw sequence or one or more FASTA sequences into the text area below. Input limit is 200000 characters.

Please check the browser compatibility page before using this program.
  • Add copies of to the above sequence.
  • Use pK values from
*This page requires JavaScript. See browser compatibility.
*You can mirror this page or use it off-line.

new window | home | citation
Tue Sep 20 18:12:27 2011
Valid XHTML 1.0! Valid CSS!