What Would Be the Expected Result of a Lysine Residue

question 20

Multiple Choice

What would be the expected result of a lysine residue being substituted with a serine residue in the BPG binding site of hemoglobin?

• A) BPG would bind more tightly because of the loss of a positive charge.
• B) BPG would bind more tightly because of the gain of a positive charge.
• C) BPG would bind less tightly because of the loss of a positive charge.
• D) BPG would bind less tightly because of the gain of a positive charge.
• E) This substitution would have no effect on the binding of BPG.

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