MCAT Question of the Day
    •

    Q:

    		 A protein found in mice is sequenced and the results show sulfur-containing cysteine residues occur at regularly-spaced intervals. Based on these results, which of the following best describes the significance and function of these residues?
    		 

    A

    		 Cysteine amino acids are required for the formation of alpha-helices

    B

    		 Sulfur must be an important co-factor

    C

    		 Cysteine amino acids form a hydrophobic core in the protein

    D

    		 Cysteine amino acids are involved in disulfide bridges that help form tertiary structure



    Protein Structure and Function |
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