6. The diagram to the right shows the alignment of the amino acid chain for part of a protein. A. Draw on the diagram hydrogen bonds where they would be expected to occur. B. Circle the peptide bonds along each chain. C. How many complete amino acids are shown in the diagram? D. Label the amino and carboxyl ends of each chain. E. Label with "--R" where the side chains would be attached to each amino acid F. What type of secondary structure does this diagram represent?
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Hydrogen bonds typically form between the hydrogen atom of one amino acid and the oxygen or nitrogen atom of another amino acid. Show more…
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a. Draw the following pentapeptide: lysine-leucine-aspartate-threonine-phenylalanine. b. Label the amino and carboxyl terminus of your peptide. c. Label each amino acid residue with one and three letter abbreviations. d. Label the alpha carbons. e. Label the bonds around which phi and psi rotational angles occur. f. Which amino acid in this chain is most likely to be phosphorylated? Which amino acid is most likely to be acetylated? Draw the phosphorylated and acetylated forms of these amino acids. g. How does acetylation change the interaction between histone proteins and DNA?
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1) Draw the chemical structure of a protein (peptide) 3 amino acids long. Substitute "R" for each side chain. Include every atom in your structure. Label on your diagram: the peptide bond, the amino end, and the carboxyl end. 2) Which of the following amino acids has a side chain that includes a potential hydrogen bond donor? a. Leu (L) b. Ser (S) c. Val (V) d. Gly (G) 3) When two RNA molecules anneal to each other, what new interactions or bonds are formed? a. Phosphodiester bonds b. Hydrogen bonds and hydrophobic interactions c. Peptide bonds d. Interactions between bases and amino acids
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