4JUP image
Deposition Date 2013-03-25
Release Date 2014-02-05
Last Version Date 2024-10-16
Entry Detail
PDB ID:
4JUP
Keywords:
PROTEIN BINDING
Title:
Dimeric structure of CARMA1 CARD
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
3.20 Å
R-Value Free:
0.38
R-Value Work:
0.25
R-Value Observed:
0.26
Space Group:
P 21 21 21
4JUP validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Caspase recruitment domain-containing protein 11
Gene (Uniprot):CARD11
Mutagens:E24D
Chain IDs:A, B
Chain Length:104
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:Q9BXL7 Pfam ID:PF00619
Primary Citation
Novel Disulfide Bond-Mediated Dimerization of the CARD Domain Was Revealed by the Crystal Structure of CARMA1 CARD
Plos One 8 e79778 e79778 (2013)
PMID: 24224005 DOI: 10.1371/journal.pone.0079778

Abstact

CARMA1, BCL10 and MALT1 form a large molecular complex known as the CARMA1 signalosome during lymphocyte activation. Lymphocyte activation via the CARMA1 signalosome is critical to immune response and linked to many immune diseases. Despite the important role of the CARMA1 signalosome during lymphocyte activation and proliferation, limited structural information is available. Here, we report the dimeric structure of CARMA1 CARD at a resolution of 3.2 Å. Interestingly, although CARMA1 CARD has a canonical six helical-bundles structural fold similar to other CARDs, CARMA1 CARD shows the first homo-dimeric structure of CARD formed by a disulfide bond and reveals a possible biologically important homo-dimerization mechanism.

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Primary Citation of related structures
4JUP