Protein/peptide/amino acid bioinformatics Tools:
Protein Isoelectric Point calculates the theoretical pI (isoelectric point) for the protein sequence you enter.

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.