BIOC 2580 Lecture Notes - Lecture 7: Van Der Waals Force, London Dispersion Force, Alpha Helix

• School: University of Guelph
• Department: Biochemistry
• Course: BIOC 2580
• Professor: John Dawson

Document Summary

Which of the following amino acids is most likely to be buried in the interior of a protein: a. aspartate, b. threonine, c. leucine, d. lysine. A beta sheet that is polar on one side and non-polar on the other wraps around to enclose the non- Polar face inside: a small sheet (3-5 strands) makes an open fold, a larger sheet (6-8 strands) wraps all the way around to form antiparallel beta barrel, this example is green fluorescent protein. If all the helices lie on one side of the sheet, the sheet wraps around to form a parallel alphabeta- Barrel: the beta-sheet forms the central carrel, surrounding by the connecting alpha helices, example is the enzyme triode phosphate isomerase. Which of the following interactions contributes most to the formation of secondary structures in proteins: hydrophobic effect, hydrogen bonding, van der waals interactions, electrostatic interactions between ion pairs.