6. (12.38) In an aqueous environment will the following peptide fragment more likely be buried inside a globular protein or located on its surface? Explain. NH–CH-C-NH-CH-C-NH-CH-C-NH-CH-C CH₂OH CH2 CH-CH-OH CH, C-NH2

Identify the nonpolar amino acids and the acidic aminoacids in the following peptide:Glu-Thr-Val-Asp-Ile-Ser-Ala

What products are formed when each peptide is treated with trypsin? Be sure to answer all parts. [1] Phe-Leu-Phe-Asn-Lys-Ser [2] Phe-Ser-Thr-Arg-His-Trp [3] Met-Met-Lys-Val-Asp-His-Thr-Thr-Tyr-Ala-Thr-Glu

In each of the following pairs of amino acids, identify which amino acid would be more soluble in water: (a) Ala, Leu; (b) Tyr, Phe; (c) Ser, Ala; (d) Trp, His

Identify and encircle the peptide bonds in this polypeptide (Leu-Pyr-Sec-Ile-Ser-Glu)?

Consider the following two peptides: I. N-Pro-Pro - Glu - Glu - Tyr - His - Cys - Ala - Glu - Gln - Lys - Leu - Ser - Ser - Phe-Leu- Thr - C II. N-Pro-Pro - Lys - Arg - Gly - Tyr - His - Gly - Glu - Asp - Glu - Asp - Glu - Ser - Gly-Phe- Tyr-C Give three reasons why_peptide I is more likely to form an alpha helix in aqueous solution at pH 7.0. Your reasons may include why_peptide Il is less likely to form an alpha helix

(a) Draw the structure of the two possible dipeptides that can be formed by combining glycine and asparagine. (b) In each dipeptide, label the N- and C-terminal amino acids. (c) Name each peptide using three-letter symbols.

The sequence of a peptide is given below. Ala-gly-val-leu-trp-lys-ser-phe-arg-proWhich peptide bond(s) are cleaved by chymotrypsin(

a) This molecule is produced when what amino acid is transaminated? b) What are the one- and three-letter abbreviations for this amino acid?

Consider the peptide in the image and answer the following questions.