5ELI

Triggering receptor expressed on myeloid cells 2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.0977 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.261 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Neurodegenerative disease mutations in TREM2 reveal a functional surface and distinct loss-of-function mechanisms.

Kober, D.L.Alexander-Brett, J.M.Karch, C.M.Cruchaga, C.Colonna, M.Holtzman, M.J.Brett, T.J.

(2016) Elife 5: --

  • DOI: 10.7554/eLife.20391

  • PubMed Abstract: 
  • Genetic variations in the myeloid immune receptor TREM2 are linked to several neurodegenerative diseases. To determine how TREM2 variants contribute to these diseases, we performed structural and functional studies of wild-type and variant proteins. ...

    Genetic variations in the myeloid immune receptor TREM2 are linked to several neurodegenerative diseases. To determine how TREM2 variants contribute to these diseases, we performed structural and functional studies of wild-type and variant proteins. Our 3.1 Å TREM2 crystal structure revealed that mutations found in Nasu-Hakola disease are buried whereas Alzheimer's disease risk variants are found on the surface, suggesting that these mutations have distinct effects on TREM2 function. Biophysical and cellular methods indicate that Nasu-Hakola mutations impact protein stability and decrease folded TREM2 surface expression, whereas Alzheimer's risk variants impact binding to a TREM2 ligand. Additionally, the Alzheimer's risk variants appear to epitope map a functional surface on TREM2 that is unique within the larger TREM family. These findings provide a guide to structural and functional differences among genetic variants of TREM2, indicating that therapies targeting the TREM2 pathway should be tailored to these genetic and functional differences with patient-specific medicine approaches for neurodegenerative disorders.


    Organizational Affiliation

    Molecular Microbiology and Microbial Pathogenesis Program, Washington University School of Medicine, St. Louis, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Triggering receptor expressed on myeloid cells 2
A, B
126Homo sapiensMutation(s): 0 
Gene Names: TREM2
Find proteins for Q9NZC2 (Homo sapiens)
Go to Gene View: TREM2
Go to UniProtKB:  Q9NZC2
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.0977 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.261 
  • Space Group: P 64 2 2
  • Diffraction Data DOI: 
    10.15785/SBGRID/415 SBGrid
Unit Cell:
Length (Å)Angle (°)
a = 125.763α = 90.00
b = 125.763β = 90.00
c = 183.659γ = 120.00
Software Package:
Software NamePurpose
PHENIXrefinement
SCALEPACKdata scaling
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Heart, Lung, and Blood InstituteUnited StatesR01-HL119813

Revision History 

  • Version 1.0: 2016-12-28
    Type: Initial release
  • Version 1.1: 2017-01-04
    Type: Database references
  • Version 1.2: 2017-09-06
    Type: Author supporting evidence
  • Version 1.3: 2017-11-01
    Type: Author supporting evidence