BIOLOGY
STRUCTURE OF PROTEINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The amino acid glutamic acid has a R group with a negative charge. During folding, which of the following describes the orientation of the R group?
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Exterior of protein due to negative charge providing hydrophilic properties
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Exterior of protein due to negative charge providing hydrophobic properties
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Interior of protein due to negative charge providing hydrophobic properties
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Interior of protein due to negative charge providing hydrophilic properties
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Explanation:
Detailed explanation-1: -When protein folding takes place (in an aqueous compartment), the hydrophobic R groups of nonpolar amino acids will cluster together in the interior of the protein, whereas the hydrophilic R groups lay on the outside. These types of interactions are known as hydrophobic interactions.
Detailed explanation-2: -Answer and Explanation: At physiological pH (around 7.35 to 7.45), there are two amino acids that are negatively-charged: aspartic acid and glutamic acid.
Detailed explanation-3: -What role could an uncharged amino functional group in an amino acid side chain (R group) play in the three-dimensional structure of a protein? B. It could form an ionic bond with an amino group in the backbone.
There is 1 question to complete.