Biological Assembly 1  

 3D View: Structure

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: assay for oligomerization

Macromolecule Content

• Total Structure Weight: 11.50 kDa 
• Atom Count: 807 
• Residue Count: 108 
• Unique protein chains: 1

6NHY

Structure of the transmembrane domain of the Death Receptor 5 mutant (G217Y) - Trimer Only

• DOI: 10.2210/pdb6NHY/pdb
• BMRB: 30554

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2018-12-24 Released: 2019-02-27 
• Deposition Author(s): Chou, J.J., Pan, L., Zhao, L., Chen, W., Piai, A., Fu, T., Wu, H., Liu, Z.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

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

Literature

Higher-Order Clustering of the Transmembrane Anchor of DR5 Drives Signaling.

Pan, L., Fu, T.M., Zhao, W., Zhao, L., Chen, W., Qiu, C., Liu, W., Liu, Z., Piai, A., Fu, Q., Chen, S., Wu, H., Chou, J.J.

(2019) Cell 176: 1477-1489.e14

• PubMed: 30827683 
• DOI: 10.1016/j.cell.2019.02.001
• Primary Citation of Related Structures:  
  6NHY, 6NHW


• PubMed Abstract: 
  

Receptor clustering on the cell membrane is critical in the signaling of many immunoreceptors, and this mechanism has previously been attributed to the extracellular and/or the intracellular interactions. Here, we report an unexpected finding that for death receptor 5 (DR5), a receptor in the tumor necrosis factor receptor superfamily, the transmembrane helix (TMH) alone in the receptor directly assembles a higher-order structure to drive signaling and that this structure is inhibited by the unliganded ectodomain. Nuclear magnetic resonance structure of the TMH in bicelles shows distinct trimerization and dimerization faces, allowing formation of dimer-trimer interaction networks. Single-TMH mutations that disrupt either trimerization or dimerization abolish ligand-induced receptor activation. Surprisingly, proteolytic removal of the DR5 ectodomain can fully activate downstream signaling in the absence of ligand. Our data suggest a receptor activation mechanism in which binding of ligand or antibodies to overcome the pre-ligand autoinhibition allows TMH clustering and thus signaling.

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Organizational Affiliation: 

Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute at Harvard Medical School, 250 Longwood Avenue, Boston, MA 02115, USA. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tumor necrosis factor receptor superfamily member 10B	A, B, C	36	Homo sapiens	Mutation(s): 1  Gene Names: TNFRSF10B, DR5, KILLER, TRAILR2, TRICK2, ZTNFR9, UNQ160/PRO186
Find proteins for O14763 (Homo sapiens) Explore O14763  Go to UniProtKB:  O14763
NIH Common Fund Data Resources
PHAROS  O14763 GTEx  ENSG00000120889

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 15 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 6NHY Olderado

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2018-12-24 
• Released Date: 2019-02-27 
Deposition Author(s): Chou, J.J., Pan, L., Zhao, L., Chen, W., Piai, A., Fu, T., Wu, H., Liu, Z.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM116898

Revision History 

• Version 1.0: 2019-02-27
  Type: Initial release
  
• Version 1.1: 2019-03-20
  Changes: Data collection, Database references
• Version 1.2: 2020-01-01
  Changes: Author supporting evidence, Data collection