In the β-pleated sheet secondary structure of a protein, two or more amino acid sequences in separate parts of the protein are held together
A)in a coil, by hydrogen bonding.
B)in random order, due to hydrophobic interactions.
C)in a triple helix.
D)in a double helix.
E)in a zig-zag conformation, by hydrogen bonding.

Question

Quizplus · Accepted Answer

In the β-pleated sheet secondary structure, the amino acid sequences are held together in a zig-zag conformation by hydrogen bonding between the carbonyl and amino groups of adjacent amino acids. The strands run parallel or antiparallel to each other, creating a stable sheet-like structure. The other choices mentioned do not accurately describe the β-pleated sheet secondary structure.

In the β-Pleated Sheet Secondary Structure of a Protein, Two