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Which structure likely represents a GPCR? A B e C D

Which structure likely represents a GPCR? A B e C D

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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**Question:** Which structure likely represents a GPCR? **Options:** - Option A: A colorful helical structure with a twisting pattern. - Option B: A structure composed of yellow, parallel beta-sheets forming a barrel-like shape. - Option C: A complex, globular structure with both helices and sheets intertwined, colored mainly in red and blue. - Option D: A helical structure featuring several transmembrane helices, colored in a spectrum from blue to red. The helices are numbered, likely indicating segments. **Answer Choices:** - ○ C - ○ D - ○ A - ○ B **Explanation:** GPCRs, or G-protein-coupled receptors, typically have a characteristic structure of seven transmembrane helices. Option D, which shows this distinct pattern, is most consistent with the structure of a GPCR.
Transcribed Image Text:**Question:** Which structure likely represents a GPCR? **Options:** - Option A: A colorful helical structure with a twisting pattern. - Option B: A structure composed of yellow, parallel beta-sheets forming a barrel-like shape. - Option C: A complex, globular structure with both helices and sheets intertwined, colored mainly in red and blue. - Option D: A helical structure featuring several transmembrane helices, colored in a spectrum from blue to red. The helices are numbered, likely indicating segments. **Answer Choices:** - ○ C - ○ D - ○ A - ○ B **Explanation:** GPCRs, or G-protein-coupled receptors, typically have a characteristic structure of seven transmembrane helices. Option D, which shows this distinct pattern, is most consistent with the structure of a GPCR.
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