The PKa's of Arginine's α-Carboxyl Group,α-Amino Group and Side Chain

question 77

Multiple Choice

The pKa's of arginine's α-Carboxyl group,α-Amino group and side chain are 1.8,9.0 and 12.5,respectively.Calculate the isoelectric point.

• A)7.8
• B)7.2
• C)10.8
• D)5.4

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