試題詳解

27. A teacher synthesized a peptide and asked his students to describe the amino acid residues in the peptide. Student A said: "This peptide contains the amino acid residue which might be phosphorylated". Student B said: "This peptide contains the amino acid residue which has 2 chiral centers". Student C said: "This peptide does not contain the amino acid residue which could be cleaved by CNBr'. Student D said: "This peptide does not contain the amino acid residue which could be modified with N-linked glycan in glycoproteins. Student E said: "The pI of this peptide is around