Biochem-a.a

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Author:
pszurnicki
ID:
61391
Filename:
Biochem-a.a
Updated:
2011-01-23 01:29:53
Tags:
Biochem
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Biochem-a.a
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  1. Essential a.a
    • Phenyl alanine
    • valine
    • Threonine
    • Tryptophan
    • Isoleucine
    • Methionine
    • Histidine
    • Arginine
    • Leucine
    • Lysine
  2. a.a with aromatic rings
    • phenylalanine
    • tryptophan
    • tyrosine
  3. What prevents rotation about the amide bond?
    partial double character
  4. All a.a in humans are D or L form?
    L
  5. Peptides in humans are in cis or trans configuration?
    trans
  6. Proteins are quantified by reacting with what?
    ninhydrin
  7. In edman degradation what group reacts with the amino group?
    phenyl isothiocyanate
  8. Beta turn and omega loop contribute to which protein sructure?
    final protein structure
  9. In alpha helix configuration, which groups are hydrogen bonded
    co with nh 4 residues away
  10. A protein rich in beta sheets
    Fatty acid binding protein
  11. An alpha helical protein?
    Ferritin
  12. Alpha helical coiled coil
    keratin
  13. Distribution of alpha helices, beta strands and turns along a protein are part of
    secondary structure
  14. DNA binding proteins have unique supersecondary motifs..what are they
    • Leucine zipper
    • helix turn helix
    • Zinc finger
  15. What are some supersecondary motifs?
    • Beta alpha beta
    • alpha loop alpha
    • beta meander
    • Greek key
  16. Whats the difference between normal pion protein and pathologic prion protein?
    • normal is rich in alpha helices
    • abnormal is rich in beta sheet
  17. Protein aggregates called Amyloidoses are found in what neurodegenerative disease?
    Alzeimer's

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