阿摩線上測驗
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試卷名稱：107年 - 107 國立臺灣大學_碩士班招生考試：生物化學(A)#125752
年份：107年
科目：研究所、轉學考(插大)◆生物化學
26. Mr. Bean synthesizes a pentapeptide "DPRTH". Choose the correct answer from the following descriptions (pK₂ of the N-terminal amino group of the peptide is 9.1； pK₁ of the C-terminal carboxyl group of the peptide is 2.1； pKa of D is 3.65, pKa of R is 12.5, pKa of H is 6):
(A) The pI value of the peptide is around 4.
(B) The pI value of the peptide is around 7.
(C) The pI value of the peptide is around 11.
(D) When 0.1 mg of the peptide is dissolved in 100 mM Tris (pH 9), it could bind to a cation exchange column.
(E) All the residues in this peptide contain one chiral center only.
