Imagine the main chain of a protein bends back on itself, so that two amino acid residues R₁ and R₂ come close to each other. Here's what R₁ looks like: HO -CH- | CH CH3 Could R₁ form a hydrogen bond with R, at physiological pH, if R₂ were the right kind of residue? If you said R₁ could form a hydrogen bond with R₂, what would R, have to be? If there's only one possibility, write its 3-letter code. If there is more than one possibility, write the 3-letter code of any of them. ☐ yes no

Chemistry & Chemical Reactivity
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Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter24: Biochemistry
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Imagine the main chain of a protein bends back on itself, so that two amino acid residues R₁ and R₂ come close to each other. Here's what R₁ looks like:
HO
-CH-
|
CH
CH3
Could R₁ form a hydrogen bond with R, at physiological pH, if R₂ were the right kind of residue?
If you said R₁ could form a hydrogen bond with R₂, what would R, have to be?
If there's only one possibility, write its 3-letter code. If there is more than one possibility, write the
3-letter code of any of them.
☐
yes
no
Transcribed Image Text:Imagine the main chain of a protein bends back on itself, so that two amino acid residues R₁ and R₂ come close to each other. Here's what R₁ looks like: HO -CH- | CH CH3 Could R₁ form a hydrogen bond with R, at physiological pH, if R₂ were the right kind of residue? If you said R₁ could form a hydrogen bond with R₂, what would R, have to be? If there's only one possibility, write its 3-letter code. If there is more than one possibility, write the 3-letter code of any of them. ☐ yes no
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