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An alpha-helix in a globular protein is found to have a Phe at every fourth position along the length of the helix. The other amino acids are a mix of polar, charged, and nonpolar. Where is this helix most likely located with respect to the rest of the protein molecule

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Answer:

The helix will be located at the cysteine amino acid molecule

Explanation:

The alpha helix is one of the protein arrangement that exist. The protein structure comes in three categories:

  • The primary structure
  • The secondary structure
  • The tertiary structure
  • quartenary structure

The primary structure consists of an alpha helix. The alpha helix has a kink or bend every four amino acids in the chain. This is because of the amino acid cysteine that has a phenyl group. The phenyl group contributes to the out-of-shape configuration. Hence the bend.

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