The isoelectric point is the pH at which a protein has zero charge.

Name: The isoelectric point is the pH at which a protein has zero charge.
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The isoelectric point (pI) is the pH at which a protein's net charge is zero, meaning it has equal numbers of positive and negative charges. This is also the point when the protein is least soluble in water and isoelectric focusing can be used to separate proteins based on their pI.

The Isoelectric Point Is the PH at Which a Protein