5OEK

Putative active dimeric state of GHR transmembrane domain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis of the signal transduction via transmembrane domain of the human growth hormone receptor.

Bocharov, E.V.Lesovoy, D.M.Bocharova, O.V.Urban, A.S.Pavlov, K.V.Volynsky, P.E.Efremov, R.G.Arseniev, A.S.

(2018) Biochim Biophys Acta 1862: 1410-1420

  • DOI: https://doi.org/10.1016/j.bbagen.2018.03.022
  • Primary Citation of Related Structures:  
    5OEK, 5OHD

  • PubMed Abstract: 

    Prior studies of the human growth hormone receptor (GHR) revealed a distinct role of spatial rearrangements of its dimeric transmembrane domain in signal transduction across membrane. Detailed structural information obtained in the present study allowed elucidating the bases of such rearrangement and provided novel insights into receptor functioning. We investigated the dimerization of recombinant TMD fragment GHR 254-294 by means of high-resolution NMR in DPC micelles and molecular dynamics in explicit POPC membrane. We resolved two distinct dimeric structures of GHR TMD coexisting in membrane-mimicking micellar environment and providing left- and right-handed helix-helix association via different dimerization motifs. Based on the available mutagenesis data, the conformations correspond to the dormant and active receptor states and are distinguished by cis-trans isomerization of Phe-Pro 266 bond in the transmembrane helix entry. Molecular dynamic relaxations of the structures in lipid bilayer revealed the role of the proline residue in functionally significant rearrangements of the adjacent juxtamembrane region supporting alternation between protein-protein and protein-lipid interactions of this region that can be triggered by ligand binding. Also, the importance of juxtamembrane SS bonding for signal persistency, and somewhat unusual aspects of transmembrane region interaction with water molecules were demonstrated. Two alternative dimeric structures of GHR TMD attributed to dormant and active receptor states interchange via allosteric rearrangements of transmembrane helices and extracellular juxtamembrane regions that support coordination between protein-protein and protein-lipid interactions. This study provides a holistic vision of GHR signal transduction across the membrane emphasizing the role of protein-lipid interactions.


  • Organizational Affiliation

    Department of Structural Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, str. Miklukho-Maklaya 16/10, Moscow 117997, Russian Federation. Electronic address: bon@nmr.ru.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Growth hormone receptor
A, B
43Homo sapiensMutation(s): 0 
Gene Names: GHR
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P10912 (Homo sapiens)
Explore P10912 
Go to UniProtKB:  P10912
PHAROS:  P10912
GTEx:  ENSG00000112964 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP10912
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Russian Science FoundationRussian Federation14-50-00131

Revision History  (Full details and data files)

  • Version 1.0: 2018-04-11
    Type: Initial release
  • Version 1.1: 2019-05-08
    Changes: Data collection
  • Version 1.2: 2024-07-03
    Changes: Data collection, Database references, Other