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A unique hormonal recognition feature of the human glucagon-like peptide-2 receptor

Glucagon-like peptides (GLP-1 and GLP-2) are two proglucagon-derived intestinal hormones that mediate distinct physiological functions through two related receptors (GLP-1R and GLP-2R) which are important drug targets for metabolic disorders and Crohn’s disease, respectively. Despite great progress...

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Published in:Cell research 2020-12, Vol.30 (12), p.1098-1108
Main Authors: Sun, Wen, Chen, Li-Nan, Zhou, Qingtong, Zhao, Li-Hua, Yang, Dehua, Zhang, Huibing, Cong, Zhaotong, Shen, Dan-Dan, Zhao, Fenghui, Zhou, Fulai, Cai, Xiaoqing, Chen, Yan, Zhou, Yan, Gadgaard, Sarina, van der Velden, Wijnand J. C., Zhao, Suwen, Jiang, Yi, Rosenkilde, Mette M., Xu, H. Eric, Zhang, Yan, Wang, Ming-Wei
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cited_by cdi_FETCH-LOGICAL-c474t-71053a61bdf996e925c94dc0b651e379e618cf38b3fa6ad310bfbafbc8f3449e3
cites cdi_FETCH-LOGICAL-c474t-71053a61bdf996e925c94dc0b651e379e618cf38b3fa6ad310bfbafbc8f3449e3
container_end_page 1108
container_issue 12
container_start_page 1098
container_title Cell research
container_volume 30
creator Sun, Wen
Chen, Li-Nan
Zhou, Qingtong
Zhao, Li-Hua
Yang, Dehua
Zhang, Huibing
Cong, Zhaotong
Shen, Dan-Dan
Zhao, Fenghui
Zhou, Fulai
Cai, Xiaoqing
Chen, Yan
Zhou, Yan
Gadgaard, Sarina
van der Velden, Wijnand J. C.
Zhao, Suwen
Jiang, Yi
Rosenkilde, Mette M.
Xu, H. Eric
Zhang, Yan
Wang, Ming-Wei
description Glucagon-like peptides (GLP-1 and GLP-2) are two proglucagon-derived intestinal hormones that mediate distinct physiological functions through two related receptors (GLP-1R and GLP-2R) which are important drug targets for metabolic disorders and Crohn’s disease, respectively. Despite great progress in GLP-1R structure determination, our understanding on the differences of peptide binding and signal transduction between these two receptors remains elusive. Here we report the electron microscopy structure of the human GLP-2R in complex with GLP-2 and a G s heterotrimer. To accommodate GLP-2 rather than GLP-1, GLP-2R fine-tunes the conformations of the extracellular parts of transmembrane helices (TMs) 1, 5, 7 and extracellular loop 1 (ECL1). In contrast to GLP-1, the N-terminal histidine of GLP-2 penetrates into the receptor core with a unique orientation. The middle region of GLP-2 engages with TM1 and TM7 more extensively than with ECL2, and the GLP-2 C-terminus closely attaches to ECL1, which is the most protruded among 9 class B G protein-coupled receptors (GPCRs). Functional studies revealed that the above three segments of GLP-2 are essential for GLP-2 recognition and receptor activation, especially the middle region. These results provide new insights into the molecular basis of ligand specificity in class B GPCRs and may facilitate the development of more specific therapeutics.
doi_str_mv 10.1038/s41422-020-00442-0
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ispartof Cell research, 2020-12, Vol.30 (12), p.1098-1108
issn 1001-0602
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language eng
recordid cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_7785020
source PubMed Central(OpenAccess); Springer Link
subjects 101/1
101/28
13/109
631/535/1258/1259
631/80/86/2363
82/16
82/29
82/80
82/83
96/33
96/95
Biomedical and Life Sciences
C-Terminus
Cell Biology
Crohn's disease
Drug development
Electron microscopy
Feature recognition
G protein-coupled receptors
Glucagon
Glucagon-like peptide 2
Helices
Histidine
Hormones
Intestine
Life Sciences
Metabolic disorders
Peptides
Receptor mechanisms
Receptors
Signal transduction
Therapeutic targets
title A unique hormonal recognition feature of the human glucagon-like peptide-2 receptor
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