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Home Q & A Board Science-Related Homework Help High School Level Science
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hellohi hellohi
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13 years ago
Please help:( Face with Open Mouth
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#1
Staff Member
13 years ago
Proline residues induce distortions of around 20o in the direction of a helix. This is because proline cannot form a regular alpha-helix due to steric hindrance arising from its cyclic side-chain which blocks the main chain NH group. Proline causes 2 hydrogen bonds in the helix to be broken. Helices containing proline are usually long because shorter helices would be destabilized.
- Master of Science in Biology
- Bachelor of Science
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#2
Educator
13 years ago
The amino acid proline causes a kink in the secondary structure, thereby affecting tertiary structure.
hellohi Author
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#3
13 years ago
Just read, thank you:)
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