Study Questions 2 - Study Questions 2 Amino Acids, Protein...

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Study Questions 2 Amino Acids, Protein Structure, Folding, and Analysis 1) Know the structures, properties, names and three letter abbreviations of all 20 amino acids 2) Why is a peptide bond planar? 3) Why can’t both psi and phi angles be zero? 4) Name the two angles that describe the rotation around the bonds of the alpha carbon in a peptide. Explain how these are utilized to make a Ramachandran plot. What does the shading in a Ramachandran plot mean? 5) What are the amino acids in the following peptide chain? What is the approximate net charge of this peptide at pH 7.4? Met-Ser-Asp-Ile-Cys--Ile-Lys-Glu-His 6) A student wishes to replace a tryptophan found in the hydrophobic core of a protein using site-directed mutagenesis. What other amino acids might be effective in the sense that they might avoid disrupting the core? Which amino acids would disrupt the core? 7) Which of the following is true about an α helix?
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This note was uploaded on 01/24/2012 for the course BIOCHEM 415 taught by Professor Trieval during the Fall '10 term at University of Michigan.

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Study Questions 2 - Study Questions 2 Amino Acids, Protein...

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