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Consider the Ramachandran plot to answer both questions. Which observation most likely describes part of an observed a helix? $ = -59°; ys = +150°; many Ser residues $ = +60°; y = +40°; many Gly residues p = -57°; y = -47°; many Pro residues p = -60°; y = -47°; many Ala residues p = -140°; w = +130°; many Val residues

Consider the Ramachandran plot to answer both questions. Which observation most likely describes part of an observed a helix? $ = -59°; ys = +150°; many Ser residues $ = +60°; y = +40°; many Gly residues p = -57°; y = -47°; many Pro residues p = -60°; y = -47°; many Ala residues p = -140°; w = +130°; many Val residues

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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The carbon-nitrogen peptide bond is rigid, but rotation can 180 take place about the N-Cq and the Ca-C bonds in a protein (Ca is the a carbon atom). These bond angles define the 120 conformation of the peptide chain. 60 Consider the Ramachandran plot to answer both questions. Which observation most likely describes part of an -60 observed a helix? -120 O p = -59°; y = +150°; many Ser residues $ = +60°; y = +40°; many Gly residues -180 -180 180 p = -57°; y = -47°; many Pro residues $ (degrees) p = -60°; y = -47°; many Ala residues O p = -140°; y = +130°; many Val residues O O $ (degrees)
Transcribed Image Text:The carbon-nitrogen peptide bond is rigid, but rotation can 180 take place about the N-Cq and the Ca-C bonds in a protein (Ca is the a carbon atom). These bond angles define the 120 conformation of the peptide chain. 60 Consider the Ramachandran plot to answer both questions. Which observation most likely describes part of an -60 observed a helix? -120 O p = -59°; y = +150°; many Ser residues $ = +60°; y = +40°; many Gly residues -180 -180 180 p = -57°; y = -47°; many Pro residues $ (degrees) p = -60°; y = -47°; many Ala residues O p = -140°; y = +130°; many Val residues O O $ (degrees)
Which observations would not likely occur in a ß sheet? $ = +60°; y = +60°; many Gly residues 0 = -139°; yy = +135°; many Val residues p = -51°; y = +153°; many Gly and Pro residues $ = -57°; y = -49°; many Ala residues p = -120°; w = +120°; many Tyr residues
Transcribed Image Text:Which observations would not likely occur in a ß sheet? $ = +60°; y = +60°; many Gly residues 0 = -139°; yy = +135°; many Val residues p = -51°; y = +153°; many Gly and Pro residues $ = -57°; y = -49°; many Ala residues p = -120°; w = +120°; many Tyr residues
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