Which of the characteristics of collagen structure listed below contrubute to the tensi
Le strength of collagen?
(I)Collagen is made up of a triplet helix where 3 left-handed helices twist together in a right handed sense.
(II)Collagen includes at repeating sequence of amino acids with glycine every 3 amino acids in a helix with about 3 amino acids per turn.
(III)The three left-handed helices are staggered to allow close packing between glycine residues and rigidity from the bulky and inflexible proline/hydroxyproline.
A)I
B)I and II
C)I,II,and III
D)II and III
E)I and III

Question

Quizplus · Accepted Answer

All of the listed characteristics contribute to the tensile strength of collagen. The triple helix structure provides strength and stability, the repeating sequence of amino acids with glycine every 3 amino acids allows for close packing and strength, and the staggering of the left-handed helices allows for optimal packing and rigidity.

Which of the Characteristics of Collagen Structure Listed Below Contrubute