4JO8

Crystal structure of the activating Ly49H receptor in complex with m157 (G1F strain)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Targeting of a natural killer cell receptor family by a viral immunoevasin

Berry, R.Ng, N.Saunders, P.M.Vivian, J.P.Lin, J.Deuss, F.A.Corbett, A.J.Forbes, C.A.Widjaja, J.M.Sullivan, L.C.McAlister, A.D.Perugini, M.A.Call, M.J.Scalzo, A.A.Degli-Esposti, M.A.Coudert, J.D.Beddoe, T.Brooks, A.G.Rossjohn, J.

(2013) Nat.Immunol. 14: 699-705

  • DOI: 10.1038/ni.2605

  • PubMed Abstract: 
  • Activating and inhibitory receptors on natural killer (NK) cells have a crucial role in innate immunity, although the basis of the engagement of activating NK cell receptors is unclear. The activating receptor Ly49H confers resistance to infection wi ...

    Activating and inhibitory receptors on natural killer (NK) cells have a crucial role in innate immunity, although the basis of the engagement of activating NK cell receptors is unclear. The activating receptor Ly49H confers resistance to infection with murine cytomegalovirus by binding to the 'immunoevasin' m157. We found that m157 bound to the helical stalk of Ly49H, whereby two m157 monomers engaged the Ly49H dimer. The helical stalks of Ly49H lay centrally across the m157 platform, whereas its lectin domain was not required for recognition. Instead, m157 targeted an 'aromatic peg motif' present in stalks of both activating and inhibitory receptors of the Ly49 family, and substitution of this motif abrogated binding. Furthermore, ligation of m157 to Ly49H or Ly49C resulted in intracellular signaling. Accordingly, m157 has evolved to 'tackle the legs' of a family of NK cell receptors.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
M157
A
269Murid herpesvirus 1Gene Names: m157
Find proteins for Q6XK91 (Murid herpesvirus 1)
Go to UniProtKB:  Q6XK91
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Killer cell lectin-like receptor 8
B
157Mus musculusGene Names: Klra8 (Ly-49h, Ly49-h, Ly49H)
Find proteins for Q60682 (Mus musculus)
Go to UniProtKB:  Q60682
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.226 
  • Space Group: P 31 1 2
Unit Cell:
Length (Å)Angle (°)
a = 87.870α = 90.00
b = 87.870β = 90.00
c = 133.370γ = 120.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
PHASERphasing
BUSTERrefinement
ADSCdata collection
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2013-05-22
    Type: Initial release
  • Version 1.1: 2013-06-05
    Type: Database references, Structure summary
  • Version 1.2: 2013-07-10
    Type: Database references