4I1P

Human MALT1 (caspase-IG3) in complex with activity based-probe


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.201 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Activity-Based Probes for Detection of Active MALT1 Paracaspase in Immune Cells and Lymphomas.

Eitelhuber, A.C.Vosyka, O.Nagel, D.Bognar, M.Lenze, D.Lammens, K.Schlauderer, F.Hlahla, D.Hopfner, K.P.Lenz, G.Hummel, M.Verhelst, S.H.Krappmann, D.

(2015) Chem Biol 22: 129-138

  • DOI: 10.1016/j.chembiol.2014.10.021
  • Primary Citation of Related Structures:  
    4I1P

  • PubMed Abstract: 
  • MALT1 paracaspase is activated upon antigen receptor stimulation to promote lymphocyte activation. In addition, deregulated MALT1 protease activity drives survival of distinct lymphomas such as the activated B cell type of diffuse large B cell lymphoma ( ...

    MALT1 paracaspase is activated upon antigen receptor stimulation to promote lymphocyte activation. In addition, deregulated MALT1 protease activity drives survival of distinct lymphomas such as the activated B cell type of diffuse large B cell lymphoma (ABC-DLBCL). Here, we designed fluorophore or biotin-coupled activity based-probes (ABP) that covalently modify the active center of MALT1. MALT1-ABPs are exclusively labeling an active modified full length form of MALT1 upon T cell stimulation. Further, despite the CARMA1 requirement for initial MALT1 activation, the MALT1-ABPs show that protease activity is not confined to the high-molecular CARMA1-BCL10-MALT1 (CBM) complex. Using biotin-coupled ABPs, we developed a robust assay for sensitive and selective detection of active MALT1 in cell lines, primary lymphocytes, and DLBCL tumor biopsies. Taken together, MALT1-ABPs represent powerful chemical tools to measure cellular MALT1 activation, determine efficacy of small molecule inhibitors, and classify lymphomas based on MALT1 activity status.


    Organizational Affiliation

    Research Unit Cellular Signal Integration, Institute of Molecular Toxicology and Pharmacology, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstaedter Landstraße 1, 85764 Neuherberg, Germany. Electronic address: daniel.krappmann@helmholtz-muenchen.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Mucosa-associated lymphoid tissue lymphoma translocation protein 1 AC388Homo sapiensMutation(s): 0 
Gene Names: MALT1MLT
EC: 3.4.22
Find proteins for Q9UDY8 (Homo sapiens)
Explore Q9UDY8 
Go to UniProtKB:  Q9UDY8
NIH Common Fund Data Resources
PHAROS:  Q9UDY8
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
tetrapeptide BD5N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.201 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 178.243α = 90
b = 53.482β = 103.8
c = 78.74γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
PHASERphasing
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-07-09
    Type: Initial release
  • Version 1.1: 2015-01-14
    Changes: Database references
  • Version 1.2: 2015-02-04
    Changes: Database references