You Have Just Sequenced a New Protein Found in Mice

question 28

Multiple Choice

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. What is the significance of this finding?

• A) Cysteine residues are required for the formation of α helices and β pleated sheets.
• B) It will be important to include cysteine in the diet of the mice.
• C) Cysteine residues are involved in disulfide bridges that help form tertiary structure.
• D) Cysteine causes bends, or angles, to occur in the tertiary structure of proteins.

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