Topic 5 Fibrous Proteins Flashcards
1
Q
Standard Alpha helix residues / turn
A
3.6 res/turn
2
Q
α-helix residues / turn
A
3.5 res / turn
3
Q
alpha keratin has what kind of repeat ?
A
Heptad repeat
a and d typically hydrophobic
4
Q
Quaternary structure of alpha keratin
A
left handed supercoil of 2 right handed alpha helices
5
Q
3 major amino acids in collagen
A
gly, pro, ala
6
Q
Repeating sequence of collagen
A
Gly - x- y
tripeptide repeat
7
Q
Quaternary structure of collagen
A
Tripeptide with left handed twist
