aaA aaB aaD aaC CH aaE aaF aaН aaG Spider silk (figure above left) has both strength and flexibility. As shown in the figure, it contains flexible linker regions connected to crystal regions of tightly packed beta-sheets. The sheets are tightly packed to give one "level" of the crystal structure. The linker regions contribute to the ability of spider silk to stretch. Draw a representative beta-sheet showing the backbone peptide sequence from spider silk. In your drawing include 8 amino acids (all alanine) as shown (figure above right). You can use brackets in your drawing to indicate amino acids in the beta turns. Make sure to correctly depict the stereochemistry (chirality) of the amino acids in your drawing as well as dashed lines showing opportunities for H-bonds between strands. Upload Choose a File

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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aaA aaB
aaD aaC
CH
aaE aaF
aaН aaG
Spider silk (figure above left) has both strength and flexibility. As shown in the figure, it contains
flexible linker regions connected to crystal regions of tightly packed beta-sheets. The sheets are
tightly packed to give one "level" of the crystal structure. The linker regions contribute to the ability
of spider silk to stretch. Draw a representative beta-sheet showing the backbone peptide sequence
from spider silk. In your drawing include 8 amino acids (all alanine) as shown (figure above right).
You can use brackets in your drawing to indicate amino acids in the beta turns. Make sure to
correctly depict the stereochemistry (chirality) of the amino acids in your drawing as well as dashed
lines showing opportunities for H-bonds between strands.
Upload
Choose a File
Transcribed Image Text:aaA aaB aaD aaC CH aaE aaF aaН aaG Spider silk (figure above left) has both strength and flexibility. As shown in the figure, it contains flexible linker regions connected to crystal regions of tightly packed beta-sheets. The sheets are tightly packed to give one "level" of the crystal structure. The linker regions contribute to the ability of spider silk to stretch. Draw a representative beta-sheet showing the backbone peptide sequence from spider silk. In your drawing include 8 amino acids (all alanine) as shown (figure above right). You can use brackets in your drawing to indicate amino acids in the beta turns. Make sure to correctly depict the stereochemistry (chirality) of the amino acids in your drawing as well as dashed lines showing opportunities for H-bonds between strands. Upload Choose a File
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