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Question
Pitch of α−helix of a polypeptide is
Pitch of α−helix of a polypeptide is
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Solution
The correct option is B 5.4∘A
The alpha helix (α-helix) is a typical concept in the secondary architecture of proteins and it is in the form of the helix (spiral configuration) in which whole backbone N−H group donates a hydrogen bond to the backbone C=O group of the amino acid located three or four residues previously forwarded in the protein sequence. The helix, contains 3.6 debris per turn, with a rise of 1.5 Å per residue which results in a pitch of 5.4 Å. So, the correct answer is option B.
The alpha helix (α-helix) is a typical concept in the secondary architecture of proteins and it is in the form of the helix (spiral configuration) in which whole backbone N−H group donates a hydrogen bond to the backbone C=O group of the amino acid located three or four residues previously forwarded in the protein sequence. The helix, contains 3.6 debris per turn, with a rise of 1.5 Å per residue which results in a pitch of 5.4 Å.
So, the correct answer is option B.
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