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b) It's said that secondary structures form because of intra- and intermolecular hydrogen bonding involving the peptide bond. Describe what is going on to further stabilize secondary structure through these interactions.

b) It's said that secondary structures form because of intra- and intermolecular hydrogen bonding involving the peptide bond. Describe what is going on to further stabilize secondary structure through these interactions.

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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b) It's said that secondary structures form because of intra- and intermolecular hydrogen bonding involving
the peptide bond. Describe what is going on to further stabilize secondary structure through these interactions.

 

 

A סגי Z-I N HHR H O RH O 0= N O H R ..I-Z FO::: H O FO I- HR RH I-Z 0= R = Z-I N Z-I O H H O HR RH B R m vin D O H I N R Figure 1. Secondary interactions involving the main chain. (A) Structural model of an idealized - sheet, showing conventional main-chain hydrogen bonds (black dashes), C-HO hydrogen bonds (green dashes), and C5 hydrogen bonds (blue dashes). (B) Structural model of an idealized a-helix, showing main-chain hydrogen bonds (black dashes) and n* interactions (blue arrows). (C,D) Orbital overlap that underlies formation of n* interactions (C) and C5 hydrogen bonds (D). n 0* TT*
Transcribed Image Text:A סגי Z-I N HHR H O RH O 0= N O H R ..I-Z FO::: H O FO I- HR RH I-Z 0= R = Z-I N Z-I O H H O HR RH B R m vin D O H I N R Figure 1. Secondary interactions involving the main chain. (A) Structural model of an idealized - sheet, showing conventional main-chain hydrogen bonds (black dashes), C-HO hydrogen bonds (green dashes), and C5 hydrogen bonds (blue dashes). (B) Structural model of an idealized a-helix, showing main-chain hydrogen bonds (black dashes) and n* interactions (blue arrows). (C,D) Orbital overlap that underlies formation of n* interactions (C) and C5 hydrogen bonds (D). n 0* TT*
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