Helical assembly of the CARD9 CARD

Experimental Data Snapshot

  • Resolution: 4.00 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Structures of autoinhibited and polymerized forms of CARD9 reveal mechanisms of CARD9 and CARD11 activation.

Holliday, M.J.Witt, A.Rodriguez Gama, A.Walters, B.T.Arthur, C.P.Halfmann, R.Rohou, A.Dueber, E.C.Fairbrother, W.J.

(2019) Nat Commun 10: 3070-3070

  • DOI: https://doi.org/10.1038/s41467-019-10953-z
  • Primary Citation of Related Structures:  
    6N2M, 6N2P

  • PubMed Abstract: 

    CARD9 and CARD11 drive immune cell activation by nucleating Bcl10 polymerization, but are held in an autoinhibited state prior to stimulation. Here, we elucidate the structural basis for this autoinhibition by determining the structure of a region of CARD9 that includes an extensive interface between its caspase recruitment domain (CARD) and coiled-coil domain. We demonstrate, for both CARD9 and CARD11, that disruption of this interface leads to hyperactivation in cells and to the formation of Bcl10-templating filaments in vitro, illuminating the mechanism of action of numerous oncogenic mutations of CARD11. These structural insights enable us to characterize two similar, yet distinct, mechanisms by which autoinhibition is relieved in the course of canonical CARD9 or CARD11 activation. We also dissect the molecular determinants of helical template assembly by solving the structure of the CARD9 filament. Taken together, these findings delineate the structural mechanisms of inhibition and activation within this protein family.

  • Organizational Affiliation

    Early Discovery Biochemistry Department, Genentech, South San Francisco, CA, 94080, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Caspase recruitment domain-containing protein 9
A, B, C, D, E
A, B, C, D, E, F, G, H, I, J
152Homo sapiensMutation(s): 1 
Gene Names: CARD9
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H257 (Homo sapiens)
Explore Q9H257 
Go to UniProtKB:  Q9H257
GTEx:  ENSG00000187796 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9H257
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 4.00 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 
EM Software:
TaskSoftware PackageVersion

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-03
    Type: Initial release
  • Version 1.1: 2019-07-24
    Changes: Data collection, Database references
  • Version 1.2: 2024-03-20
    Changes: Data collection, Database references, Refinement description