Why is dicyclohexylcarbodiimide (DCC) used in peptide synthesis?
A) DCC "protects" the amino group of the intended N-terminal amino acid.
B) DCC activates the carboxyl group of one amino acid so that this amino acid reacts more readily with a second amino acid.
C) DCC cleaves the blocking groups from the final peptide.
D) DCC is the resin used in the automated synthesis of peptides.
E) DCC removes the peptide from the resin at the conclusion of the synthesis.
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