OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There are 3.6 amino acids per turn.
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There is a requirement for glycine every third amino acid residue.
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A hydrogen bond forms between the carbonyl oxygen of the nth amino acid residue and the-NH group of the (n + 4)th amino acid residue.
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Proline is typically not found in the
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It is right-handed.
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Detailed explanation-1: -glycine is not found in alpha helix since it is a helix breaker.
Detailed explanation-2: -8. Which of the following is not correct about the -Helices? Explanation: The structure is stabilized by hydrogen bonds formed between the main chain atoms of residues i and i + 4. The hydrogen bonds are nearly parallel with the helical axis.
Detailed explanation-3: -An alpha helix is a common shape that amino acid chains will form. The alpha helix is characterized by a tight right-handed twist in the amino acid chain that causes it to form a rod shape. Hydrogen bonds between the hydrogen in an amino group and the oxygen in a carboxyl group on the amino acid cause this structure.
Detailed explanation-4: -The triple-helix conformation of collagen has a requirement for Gly as every third residue in the amino acid sequence.