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 200,000,000 characters.

  • Add copies of to each 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
Sun 1 Oct 12:00:07 2023
Valid XHTML 1.0; Valid CSS