BCHM 307

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Author:
Anonymous
ID:
235167
Filename:
BCHM 307
Updated:
2013-09-16 16:14:10
Tags:
Lecture two three
Folders:

Description:
Slide 26 to TA's lecture and Enzymes
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  1. Secondary Structure
    • –  alpha helix
    • –  beta sheet
    • – turns
    • – random coil
    • Stabilized by Hydrogen bonds
    • R- groups sticking out of structure
  2. loops
    • Secondary structure
    • from glycine or proline
  3. Protein Folding
    Stabilized by H-bonding and R groups
  4. Primary structure dictates secondary structure
    • bulky/charged are unfavorable for alpha helices
    • proline is unfavorable in an alpha helix or a beta sheet
    • proline and glycine are favored in turns
  5. Secondary structure dictates tertiary structure
    • hydrophobic residues are unfavorable on the exterior of a protein
    • charged residues are unfavorable on the interior of a protein (unless they
    • are paired with opposite charges)
    • disulfide bridges stabilize tertiary structure covalently

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