3V4O

Human MALT1 (caspase domain) in complex with an irreversible peptidic inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.176 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural Determinants of MALT1 Protease Activity.

Wiesmann, C.Leder, L.Blank, J.Bernardi, A.Melkko, S.Decock, A.D'Arcy, A.Villard, F.Erbel, P.Hughes, N.Freuler, F.Nikolay, R.Alves, J.Bornancin, F.Renatus, M.

(2012) J.Mol.Biol. 419: 4-21

  • DOI: 10.1016/j.jmb.2012.02.018
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The formation of the CBM (CARD11-BCL10-MALT1) complex is pivotal for antigen-receptor-mediated activation of the transcription factor NF-κB. Signaling is dependent on MALT1 (mucosa-associated lymphoid tissue lymphoma translocation protein 1), which n ...

    The formation of the CBM (CARD11-BCL10-MALT1) complex is pivotal for antigen-receptor-mediated activation of the transcription factor NF-κB. Signaling is dependent on MALT1 (mucosa-associated lymphoid tissue lymphoma translocation protein 1), which not only acts as a scaffolding protein but also possesses proteolytic activity mediated by its caspase-like domain. It remained unclear how the CBM activates MALT1. Here, we provide biochemical and structural evidence that MALT1 activation is dependent on its dimerization and show that mutations at the dimer interface abrogate activity in cells. The unliganded protease presents itself in a dimeric yet inactive state and undergoes substantial conformational changes upon substrate binding. These structural changes also affect the conformation of the C-terminal Ig-like domain, a domain that is required for MALT1 activity. Binding to the active site is coupled to a relative movement of caspase and Ig-like domains. MALT1 binding partners thus may have the potential of tuning MALT1 protease activity without binding directly to the caspase domain.


    Organizational Affiliation

    Novartis Institutes for BioMedical Research, Forum 1, Novartis Campus, CH-4002 Basel, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mucosa-associated lymphoid tissue lymphoma translocation protein 1
A
245Homo sapiensMutation(s): 0 
Gene Names: MALT1 (MLT)
EC: 3.4.22.-
Find proteins for Q9UDY8 (Homo sapiens)
Go to Gene View: MALT1
Go to UniProtKB:  Q9UDY8
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
MALT1 Inhibitor
B
6N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.176 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 77.500α = 90.00
b = 77.500β = 90.00
c = 180.493γ = 120.00
Software Package:
Software NamePurpose
XDSdata reduction
REFMACrefinement
XSCALEdata scaling
Adxvdata processing
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-03-14
    Type: Initial release
  • Version 1.1: 2012-05-09
    Type: Database references
  • Version 1.2: 2012-12-12
    Type: Other
  • Version 1.3: 2017-11-08
    Type: Refinement description