ISOELECTRIC POINT Definition & Meaning

isoelectric point

Chemistry.

the pH at which a substance is electrically neutral or at which it is at its minimum ionization.

isoelectric point

biochem the pH value at which the net electric charge of a molecule, such as a protein or amino acid, is zero

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First recorded in 1895–1900

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Examples have not been reviewed.

To promote the formation of new disulfide bonds, that value, known as the isoelectric point, has to match the pH of hair keratin.

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She and her colleagues wondered if they could change a protein’s isoelectric point to make it mesh better with keratin’s pH value.

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Next, they added this substance to a chemical soup called EDDAC, raising its isoelectric point.

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