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Biochemistry - Structure and Properties of Peptides

Exercise : Structure and Properties of Peptides - Section 1
  • Structure and Properties of Peptides - Section 1
1.
Hydrogen bonds in a-helices are
more numerous than Vander Waals interactions
not present at Phe residues
analogous to the steps in a spiral staircase
roughly parallel to the helix axis
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
The peptide bond in proteins is
only found between proline residues
usually cis unless proline is the next amino acid
usually trans unless proline is the next amino acid
is planar because of steric hinderance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The molecular formula for glycine is C2H5O2N. What would be the molecular formula for a linear oligomer made by linking ten glycine molecules together by condensation synthesis?
C20H50O20N10
C20H32O11N10
C20H40O10N10
C20H68O29N10
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Which of the following is an example of tertiary structure in a protein?
A multimeric protein
An a-helix
A P-pleated sheet
A globular domain
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
The peptide, Val-Lys-Glu-Met-Ser-Trp-Arg-Ala, was digested with cyanogen bromide (CNBr) to produce:
Val-Lys + Glu-Met-Ser + Trp-Arg-Ala
Val-Lys-Glu-Met-Ser-Trp + Arg-Ala
Val-Lys-Glu-Met + Ser-Trp-Arg-Ala
Val-Lys-Glu + Met-Ser-Trp-Arg-Ala
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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