4I16

Crystal structure of CARMA1 CARD

• PDB DOI:  https://doi.org/10.2210/pdb4I16/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2012-11-20 Released: 2012-12-26 
• Deposition Author(s): Li, S., Yang, X., Shen, Y.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 0.232 
• R-Value Work: 0.192 
• R-Value Observed: 0.194 

Literature

Structural insights into the assembly of CARMA1 and BCL10

Li, S., Yang, X., Shao, J., Shen, Y.

(2012) PLoS One 7: e42775-e42775

• PubMed: 22880103 
• DOI: https://doi.org/10.1371/journal.pone.0042775
• Primary Citation of Related Structures:  
  4I16


• PubMed Abstract: 
  

The CBM complex (CARMA1, BCL10 and MALT1) plays a crucial role in B and T lymphocyte activation. CARMA1 serves as a scaffold for BCL10, MALT1 and other effector proteins and regulates various signaling pathways related to the immune response. The assembly of CARMA1 and BCL10 is mediated through a CARD-CARD interaction. Here, we report the crystal structure of the CARD domain of CARMA1 at a resolution of 1.75 Å. The structure consists of six helices, as previously determined for CARD domains. Structural and computational analysis identified the binding interface between CARMA1-CARD and BCL10-CARD, which consists of a basic patch in CARMA1 and an acidic patch in BCL10. Site-directed mutagenesis, co-immunoprecipitation and an NF-κB activation assay confirmed that the interface is necessary for association and downstream signaling. Our studies provide molecular insight into the assembly of CARMA1 and BCL10.

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Organizational Affiliation: 

State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 11.24 kDa 
• Atom Count: 848 
• Modelled Residue Count: 90 
• Deposited Residue Count: 93 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Caspase recruitment domain-containing protein 11	A	93	Mus musculus	Mutation(s): 2  Gene Names: Card11, Carma1
UniProt & NIH Common Fund Data Resources
Find proteins for Q8CIS0 (Mus musculus) Explore Q8CIS0  Go to UniProtKB:  Q8CIS0
IMPC:  MGI:1916978

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A], C [auth A], D [auth A], E [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 0.232 
• R-Value Work: 0.192 
• R-Value Observed: 0.194 
• Space Group: P 4₁ 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 82.285	α = 90
b = 82.285	β = 90
c = 82.285	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
SHELXS	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-12-26 
Deposition Author(s): Li, S., Yang, X., Shen, Y.

Revision History  

• Version 1.0: 2012-12-26
  Type: Initial release