2L34

Structure of the DAP12 transmembrane homodimer


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:  
    2L34, 2L35

  • 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 contacts among basic and acidic residues in their transmembrane domains to form the functional complexes ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TYRO protein tyrosine kinase-binding proteinA, B33Homo sapiensMutation(s): 0 
Gene Names: TYROBPDAP12KARAP
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for O43914 (Homo sapiens)
Explore O43914 
Go to UniProtKB:  O43914
PHAROS:  O43914
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 75 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2L34 Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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