Structure of the human glucagon class B G-protein-coupled receptor

Fai Yiu Siu, Min He, Chris De Graaf, Gye Won Han, Dehua Yang, Zhiyun Zhang, Caihong Zhou, Qingping Xu, Daniel Wacker, Jeremiah S. Joseph, Wei Liu, Jesper Lau, Vadim Cherezov, Vsevolod Katritch, Ming Wei Wang, Raymond C. Stevens

Research output: Contribution to journalArticle

256 Citations (Scopus)

Abstract

Binding of the glucagon peptide to the glucagon receptor (GCGR) triggers the release of glucose from the liver during fasting; thus GCGR plays an important role in glucose homeostasis. Here we report the crystal structure of the seven transmembrane helical domain of human GCGR at 3.4 Å resolution, complemented by extensive site-specific mutagenesis, and a hybrid model of glucagon bound to GCGR to understand the molecular recognition of the receptor for its native ligand. Beyond the shared seven transmembrane fold, the GCGR transmembrane domain deviates from class A G-protein-coupled receptors with a large ligand-binding pocket and the first transmembrane helix having a 'stalk' region that extends three alpha-helical turns above the plane of the membrane. The stalk positions the extracellular domain (∼12 kilodaltons) relative to the membrane to form the glucagon-binding site that captures the peptide and facilitates the insertion of glucagon's amino terminus into the seven transmembrane domain.

Original languageEnglish (US)
Pages (from-to)444-449
Number of pages6
JournalNature
Volume499
Issue number7459
DOIs
StatePublished - 2013
Externally publishedYes

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Glucagon Receptors
G-Protein-Coupled Receptors
Glucagon
Ligands
Glucose
Peptides
Membranes
Site-Directed Mutagenesis
Fasting
Homeostasis
Binding Sites
Liver

ASJC Scopus subject areas

  • General

Cite this

Siu, F. Y., He, M., De Graaf, C., Han, G. W., Yang, D., Zhang, Z., ... Stevens, R. C. (2013). Structure of the human glucagon class B G-protein-coupled receptor. Nature, 499(7459), 444-449. https://doi.org/10.1038/nature12393

Structure of the human glucagon class B G-protein-coupled receptor. / Siu, Fai Yiu; He, Min; De Graaf, Chris; Han, Gye Won; Yang, Dehua; Zhang, Zhiyun; Zhou, Caihong; Xu, Qingping; Wacker, Daniel; Joseph, Jeremiah S.; Liu, Wei; Lau, Jesper; Cherezov, Vadim; Katritch, Vsevolod; Wang, Ming Wei; Stevens, Raymond C.

In: Nature, Vol. 499, No. 7459, 2013, p. 444-449.

Research output: Contribution to journalArticle

Siu, FY, He, M, De Graaf, C, Han, GW, Yang, D, Zhang, Z, Zhou, C, Xu, Q, Wacker, D, Joseph, JS, Liu, W, Lau, J, Cherezov, V, Katritch, V, Wang, MW & Stevens, RC 2013, 'Structure of the human glucagon class B G-protein-coupled receptor', Nature, vol. 499, no. 7459, pp. 444-449. https://doi.org/10.1038/nature12393
Siu FY, He M, De Graaf C, Han GW, Yang D, Zhang Z et al. Structure of the human glucagon class B G-protein-coupled receptor. Nature. 2013;499(7459):444-449. https://doi.org/10.1038/nature12393
Siu, Fai Yiu ; He, Min ; De Graaf, Chris ; Han, Gye Won ; Yang, Dehua ; Zhang, Zhiyun ; Zhou, Caihong ; Xu, Qingping ; Wacker, Daniel ; Joseph, Jeremiah S. ; Liu, Wei ; Lau, Jesper ; Cherezov, Vadim ; Katritch, Vsevolod ; Wang, Ming Wei ; Stevens, Raymond C. / Structure of the human glucagon class B G-protein-coupled receptor. In: Nature. 2013 ; Vol. 499, No. 7459. pp. 444-449.
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