7CZ5

Cryo-EM structure of the human growth hormone-releasing hormone receptor-Gs protein complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Structural basis for activation of the growth hormone-releasing hormone receptor.

Zhou, F.Zhang, H.Cong, Z.Zhao, L.H.Zhou, Q.Mao, C.Cheng, X.Shen, D.D.Cai, X.Ma, C.Wang, Y.Dai, A.Zhou, Y.Sun, W.Zhao, F.Zhao, S.Jiang, H.Jiang, Y.Yang, D.Eric Xu, H.Zhang, Y.Wang, M.W.

(2020) Nat Commun 11: 5205-5205

  • DOI: https://doi.org/10.1038/s41467-020-18945-0
  • Primary Citation of Related Structures:  
    7CZ5

  • PubMed Abstract: 

    Growth hormone-releasing hormone (GHRH) regulates the secretion of growth hormone that virtually controls metabolism and growth of every tissue through its binding to the cognate receptor (GHRHR). Malfunction in GHRHR signaling is associated with abnormal growth, making GHRHR an attractive therapeutic target against dwarfism (e.g., isolated growth hormone deficiency, IGHD), gigantism, lipodystrophy and certain cancers. Here, we report the cryo-electron microscopy (cryo-EM) structure of the human GHRHR bound to its endogenous ligand and the stimulatory G protein at 2.6 Å. This high-resolution structure reveals a characteristic hormone recognition pattern of GHRH by GHRHR, where the α-helical GHRH forms an extensive and continuous network of interactions involving all the extracellular loops (ECLs), all the transmembrane (TM) helices except TM4, and the extracellular domain (ECD) of GHRHR, especially the N-terminus of GHRH that engages a broad set of specific interactions with the receptor. Mutagenesis and molecular dynamics (MD) simulations uncover detailed mechanisms by which IGHD-causing mutations lead to the impairment of GHRHR function. Our findings provide insights into the molecular basis of peptide recognition and receptor activation, thereby facilitating the development of structure-based drug discovery and precision medicine.


  • Organizational Affiliation

    The CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, China.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Growth hormone-releasing hormone receptor,growth hormone-releasing hormone receptorA [auth R]556Homo sapiensMutation(s): 0 
Gene Names: GHRHR
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q02643 (Homo sapiens)
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PHAROS:  Q02643
GTEx:  ENSG00000106128 
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UniProt GroupQ02643
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(s) subunit alpha isoforms shortB [auth A]394Homo sapiensMutation(s): 8 
Gene Names: GNASGNAS1GSP
Membrane Entity: Yes 
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Find proteins for P63092 (Homo sapiens)
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PHAROS:  P63092
GTEx:  ENSG00000087460 
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UniProt GroupP63092
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
SomatoliberinC [auth P]44Homo sapiensMutation(s): 0 
Membrane Entity: Yes 
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Find proteins for P01286 (Homo sapiens)
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PHAROS:  P01286
GTEx:  ENSG00000118702 
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UniProt GroupP01286
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1D [auth B]400Rattus norvegicusMutation(s): 0 
Gene Names: Gnb1
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Find proteins for P54311 (Rattus norvegicus)
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2E [auth G]71Bos taurusMutation(s): 0 
Gene Names: GNG2
Membrane Entity: Yes 
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Nanobody35F [auth N]126synthetic constructMutation(s): 0 
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2020-11-18
    Type: Initial release