raw the structure and give the name of the pentapeptide GRAND. Encircle all peptide bonds as well
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- Draw the structure of a dipeptide containing the amino acidsalanine and tyrosine and outline the peptide bond.Describe in detail why the atoms surrounding the peptide bond are planar, forming the so-called amide plane.Draw the chemical structure of an alanine pentapeptide. Indicate the location of each peptide bond. Label the phi () and psi () dihedral angles. Name and briefly define the four levels of protein structure.
- Draw the following amino acids described below include all hydrogens in the structure. 1)amino acid Proline at pH2.0. 2) amino acid glycine at pH 3.0. 3) amino acid with a Methionine at pH 7.0. 4) the amino acid Histidine at pH5.0.How many different tripeptides can be formed from three different amino acids, glutamine, histidine, and lysine? Draw the possible structures. Using three-letter abbreviations, give the names for all of the possible tripeptides.Draw the structure of the dipeptide Thr-Cys at pH7. Clearly indicate the following: 1. the amino terminus (N) 2. the carboxyl terminus (C) 3. a peptide bond 4. an α-carbon atom
- Draw the structure and name the following polypeptides: 1. SRAL b. ENIRYTAKDraw a polypeptide chain with the following sequence of amino acids: M-A-N-A-N-D-G-E-N-EDraw the structure of the tetrapeptide MIEL. Refer to the slide sets for the structures of the amino acids. Encircle all the peptide bonds. Box and label the N- and C-terminal amino acid residues.
