2L35

Structure of the DAP12-NKG2C transmembrane heterotrimer


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 75 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The structural basis for intramembrane assembly of an activating immunoreceptor complex.

Call, M.E.Wucherpfennig, K.W.Chou, J.J.

(2010) Nat.Immunol. 11: 1023-1029

  • DOI: 10.1038/ni.1943
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Many receptors that activate cells of the immune system are multisubunit membrane protein complexes in which ligand recognition and signaling functions are contributed by separate protein modules. Receptors and signaling subunits assemble through con ...

    Many receptors that activate cells of the immune system are multisubunit membrane protein complexes in which ligand recognition and signaling functions are contributed by separate protein modules. Receptors and signaling subunits assemble through contacts among basic and acidic residues in their transmembrane domains to form the functional complexes. Here we report the nuclear magnetic resonance (NMR) structure of the membrane-embedded, heterotrimeric assembly formed by association of the DAP12 signaling module with the natural killer (NK) cell-activating receptor NKG2C. The main intramembrane contact site is formed by a complex electrostatic network involving five hydrophilic transmembrane residues. Functional mutagenesis demonstrated that similar polar intramembrane motifs are also important for assembly of the NK cell-activating NKG2D-DAP10 complex and the T cell antigen receptor (TCR)-invariant signaling protein CD3 complex. This structural motif therefore lies at the core of the molecular organization of many activating immunoreceptors.


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DAP12-NKG2C_TM
A
63Homo sapiensMutation(s): 0 
Gene Names: TYROBP (DAP12, KARAP), KLRC2 (NKG2C)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Immune Receptors
Protein: 
DAP12 dimeric signaling domain in complex with activating receptor NKG2C
Find proteins for O43914 (Homo sapiens)
Go to Gene View: TYROBP
Go to UniProtKB:  O43914
Find proteins for P26717 (Homo sapiens)
Go to Gene View: KLRC2
Go to UniProtKB:  P26717
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TYRO protein tyrosine kinase-binding protein
B
32Homo sapiensMutation(s): 0 
Gene Names: TYROBP (DAP12, KARAP)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Immune Receptors
Protein: 
DAP12 dimeric signaling domain in complex with activating receptor NKG2C
Find proteins for O43914 (Homo sapiens)
Go to Gene View: TYROBP
Go to UniProtKB:  O43914
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 75 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2L35 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-11-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance