A. Similar O similar overall size of amino acid O ability to hydrogen bond O same group of periodic table so similar pattern of reactivity O electronegativity

Introductory Chemistry: A Foundation
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Chapter21: Biochemistry
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Glutathione peroxidase has an active site selenocysteine rather than cysteine. How would the
change from sulfur to selenium produce similar chemistry, and in what ways would the chemistry
differ? Select all that apply.
A. Similar
O similar overall size of amino acid
O ability to hydrogen bond
O same group of periodic table so similar pattern of reactivity
O electronegativity
B. Different
Oselenocystine is more like oxygen
Oselenium is smaller
O selenium would be a weaker nucleophile
selenocystine is more acidic
Transcribed Image Text:Glutathione peroxidase has an active site selenocysteine rather than cysteine. How would the change from sulfur to selenium produce similar chemistry, and in what ways would the chemistry differ? Select all that apply. A. Similar O similar overall size of amino acid O ability to hydrogen bond O same group of periodic table so similar pattern of reactivity O electronegativity B. Different Oselenocystine is more like oxygen Oselenium is smaller O selenium would be a weaker nucleophile selenocystine is more acidic
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