8DDC

Intramembrane recognition between transmembrane domains of IL-7R and common gamma chain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis of gamma chain family receptor sharing at the membrane level.

Cai, T.Lenoir Capello, R.Pi, X.Wu, H.Chou, J.J.

(2023) Science 381: 569-576

  • DOI: https://doi.org/10.1126/science.add1219
  • Primary Citation of Related Structures:  
    8DDC, 8DDD

  • PubMed Abstract: 

    Common γ chain (γc) cytokine receptors, including interleukin-2 (IL-2), IL-4, IL-7, IL-9, IL-15, and IL-21 receptors, are activated upon engagement with a common γc receptor (CD132) by concomitant binding of their ectodomains to an interleukin. In this work, we find that direct interactions between the transmembrane domains (TMDs) of both the γc and the interleukin receptors (ILRs) are also required for receptor activation. Moreover, the same γc TMD can specifically recognize multiple ILR TMDs of diverse sequences within the family. Heterodimer structures of γc TMD bound to IL-7 and IL-9 receptor TMDs-determined in a lipid bilayer-like environment by nuclear magnetic resonance spectroscopy-reveal a conserved knob-into-hole mechanism of recognition that mediates receptor sharing within the membrane. Thus, signaling in the γc receptor family requires specific heterotypic interactions of the TMDs.


  • Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cytokine receptor common subunit gamma34Mus musculusMutation(s): 2 
Gene Names: Il2rg
Membrane Entity: Yes 
UniProt
Find proteins for P34902 (Mus musculus)
Explore P34902 
Go to UniProtKB:  P34902
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP34902
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Interleukin-7 receptor subunit alpha31Mus musculusMutation(s): 0 
Gene Names: Il7r
Membrane Entity: Yes 
UniProt
Find proteins for P16872 (Mus musculus)
Explore P16872 
Go to UniProtKB:  P16872
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP16872
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM140887
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesAI150709
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM132079

Revision History  (Full details and data files)

  • Version 1.0: 2023-07-05
    Type: Initial release
  • Version 1.1: 2023-08-30
    Changes: Data collection, Database references
  • Version 1.2: 2024-05-15
    Changes: Database references