Protein charge – how to predict it & take advantage of it; isoelectric point (pI) and ion exchange chromatography (with troubleshooting…) – The Bumbling Biochemist
Frontiers | Protein pI and Intracellular Localization
Isoelectric point - Wikipedia
Isoelectric point - Wikipedia
How to Calculate Peptide Charge and Isoelectric Point MCAT Trick - YouTube