Levels of Organization of proteins

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Author:
theresemaninang
ID:
311901
Filename:
Levels of Organization of proteins
Updated:
2015-11-22 20:29:05
Tags:
lecture
Folders:
biochemistry
Description:
biochem
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  1. Staight chain; peptide chain
    Primary Structure
  2. Primary Structure is connected by
    Peptide bond
  3. Characteristics of Primary Structure
    • Planar
    • Partial Double Bond
    • Trans configuration
    • Freedom of rotation
  4. Divide the peptide bond by enzyme
    Cleavage Separation
  5. Stronger bond; no movement
    Partial Double Bond
  6. Steric action
    Trans configuration
  7. "Same"
    cis
  8. "Opposite"
    trans
  9. Recurrent/ repeating pattern with the presence of H bond
    Secondary Structure
  10. Alpha helix
    Secondary Structure
  11. AA are positioned in the helix by:
    • R group projected outward
    • Right handed alpha helix
    • amino, carboxyl & hydrogen are inside to form H bond make it more stable
  12. Causing Stability
    • Proline, Glycine, aa w/ bulky side chain
    • With charged side chain
  13. Types of Beta Sheets
    • Parallel
    • Antiparallel
  14. Involve 2 peptide chain
    Interchain
  15. Single peptide chain
    Intrachain
  16. Do not have recurrent action/ pattern; contains H bond
    Loops
  17. 5 or more loops
    turns and bends
  18. have beta helix; allow gly & pro to be more flexible and to change direction easily
    Beta bend
  19. Combining secondary structure
    Supersecondary Structure
  20. Group of secondary structure combine together
    Domain
  21. 3D structure; has single polypeptide chain & H bond
    Tertiary Structure
  22. Hydrophobic Interaction
    • H bond & peptide
    • H bond & side chain + peptide
    • H bond & 2 side chain
  23. 2 or more polypeptide chain
    Quaternary Structure
  24. Altering native conformation
    Denaturation
  25. Regaining back to native conformation
    Renaturation
  26. To form Globular protein
    Protein Folding
  27. Protein folding assisted by:
    • Protein Disulfied Isomerase
    • Proline-cis, Trans-isomerase
    • Chaperons
  28. Misfolded Proteins
    • Prion Disease
    • Alzhiemer's disease
    • Thalassemia

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