Essential Biochemistry - Chemistry Of Proteins (Section 5 - No. 15)
What is the isoelectric point (pI)?
The pH at which a molecule has a net charge of zero.
The pH at which a molecule is most soluble.
The pH at which an amino acid is least reactive.
The pH at which the protein denatures.
Explanation
The isoelectric point is the pH at which the molecule carries no net electrical charge.
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