BMS1041 amino acids

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1. Desmosine is an AA...

  • formed of four hydroxylysine residues
  • formed of four lysine residues
  • formed of four glycine residues
  • formed of four hydroxyproline residues
  • formed of four hydroxyproline and hydroxylysine residues
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Other questions in this quiz

2. The AA with aromatic R groups are characterised by:

  • an aromatic ring structure which gives these AA their characteristic UV spectra
  • an aromatic ring structures
  • a strong flagrance, as referred to by aromatic
  • a high carbon content

3. The AA's hydroxyproline and hydroxylysine...

  • are hydroxylated forms of proline and lysine, which require vit C as an enzyme cofactor for the synthesis and are found at high levels in collagen
  • are hydroxylated forms of proline and lysine, which require vit C as an enzyme cofactor for their synthesis
  • are hydroxylated forms of proline and lysine, thus not encoded by the genetic code
  • are translated from specific DNA sequences

4. Proline:

  • always hydroxylated to hydroxyproline
  • commonly found in alpha helices
  • Commonly found in beta turns
  • never found in collagen
  • is an uncommon AA

5. The isoelectric point for glycine is approx pH 6. What is the predominant charge on glycine at pH 2?

  • positive
  • neutral
  • negative
  • no effect of pH on charge

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