Answer to Question #86784 in Biochemistry for Ayce Yilmaz

Question

3) Draw the complete structures of the following amino acid or oligopeptide.
a. The dipeptide Ala-His
b. The tripeptide Glu-Pro-Cys
4) Re-write the following peptides using the three letter amino acid codes. a. HEWATRGIR
b. QYKVLMCD
5) Draw the predominate form(s) of histidine at the following pH values. a. pH 3.0
b. pH 8.0 c. pH 10.0
6) Indicate whether and where the following peptides are cleaved by the indicated treatments.
Peptide
a. Phe-Arg-Pro b. Phe-Met-Leu c. Ala-Gly-Phe d. Gly-Met-Pro e. Pro-Arg-Met
Treatment
trypsin carboxypeptidase B chymotrypsin CNBr
trypsin
7) Consider the peptide: YHFDMPTKQERGNPCVDRPIASMVLIMEALIKYAGAELICSHWNWDEA a. If it is cleaved with trypsin, what are the sequences of the fragments?
b. If it is cleaved with pepsin, what are the sequences of the fragments?

Answer 1

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