Engineering novel peptide agonists of the glucagon-like peptide-1 receptor

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Abstract/Contents

Abstract
Understanding the molecular operations of G-protein coupled receptors and their ligands is a central goal in the project of understanding human physiology and altering it with pharmacological agents to improve human health. Receptors in GPCR class B have pharmacological and structural features that are distinct among GPCRs because they are evolutionarily adapted to bind and respond to short, alpha-helical peptide ligands instead of small molecule ligands. The glucagon-like peptide-1 receptor (GLP-1R) is a class B G-protein coupled receptor and diabetes drug target expressed mainly in the pancreatic β-cells that, when activated by its agonist GLP-1 after a meal, triggers insulin secretion and β-cell survival and proliferation. The best-studied agonist peptides, GLP-1 and exendin-4, share sequence homology at their N-terminal region; however, modifications to this region that can be tolerated are not fully understood. In this work, I have used combinatorial peptide screening coupled with chemical exploration with non-canonical amino acid substitutions to find novel and highly active GLP-1R agonists with altered N-terminal composition and to explore the principles that govern peptide activity.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2020; ©2020
Publication date 2020; 2020
Issuance monographic
Language English

Creators/Contributors

Author Longwell, Chelsea Kliebert
Degree supervisor Cochran, Jennifer R
Thesis advisor Cochran, Jennifer R
Thesis advisor Chen, James Kenneth
Thesis advisor Fordyce, Polly
Thesis advisor Grimes, Kevin D
Degree committee member Chen, James Kenneth
Degree committee member Fordyce, Polly
Degree committee member Grimes, Kevin D
Associated with Stanford University, Department of Chemical and Systems Biology.

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Chelsea Kliebert Longwell.
Note Submitted to the Department of Chemical and Systems Biology.
Thesis Thesis Ph.D. Stanford University 2020.
Location electronic resource

Access conditions

Copyright
© 2020 by Chelsea Kliebert Longwell
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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