The pK_(a_1), pK_(a_2) and pK_(a_3) value for the amino acid cysteine – InterviewSolution

1.	The pK_(a_1), pK_(a_2) and pK_(a_3) value for the amino acid cysteine (HS-CH_2-undersetunderset(NH_2)(\|)CH-COOH) are respectively 1.8, 8.3, 10.8. What is isoelectric point of cysteine amino acid ?
Answer» <P> SOLUTION :`p^(\|)=(pK_(a_2))+pk_(a_3))/2=(8.3+10.8)/2=8.85`

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