Identify the charged groups in the peptide shown in Question 4 at pH 1 and at pH 7. What is the net charge of this peptide at these two pH values?
Answer to relevant QuestionsConsider the following peptides: Phe! Glu! Ser! Met and Val! Trp! Cys! Leu. Do these peptides have differ-ent net charges at pH 1? At pH 7? Indicate the charges at both pH values. Identify the polar amino acids, the aromatic amino acids, and the sulfur-containing amino acids, given a peptide with the following amino acid sequence: Val! Met! Ser! Ile! Phe! Arg! Cys! Tyr! Leu What are Ramachandran angles? What is the nature of “random” structure in proteins? What is a prion?
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