The immunoglobulin fold motif in antibodies is composed primarily of which type(s) of secondary structure?
A) $\alpha$ helices
B) $\beta$ strands
C) random coils
D) double helices
E) $\delta$ sheets

Question

The immunoglobulin fold motif in antibodies is composed primarily of which type(s) of secondary structure?
A) $\alpha$ helices
B) $\beta$ strands
C) random coils
D) double helices
E)  $\delta$  sheets

Quizplus · Accepted Answer

The immunoglobulin fold motif in antibodies is composed primarily of beta strands, which form a beta sheet. In this motif, beta strands alternate with short turns or loops, resulting in a beta sandwich structure. The F1F1F1S1 notation in the answer choices represents the arrangement of the beta strands and loops in the motif.

The Immunoglobulin Fold Motif in Antibodies Is Composed Primarily of Which