Biological Assembly 1  

 3D View: Structure | Electron Density

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

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

Macromolecule Content

• Total Structure Weight: 43.98 kDa 
• Atom Count: 3178 
• Residue Count: 368 
• Unique protein chains: 1

3V55

Human MALT1 (334-719) in its ligand free form

• DOI: 10.2210/pdb3V55/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-12-16 Released: 2012-03-14 
• Deposition Author(s): Renatus, M., Wiesmann, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.81 Å
• R-Value Free: 0.238 
• R-Value Work: 0.196 
• R-Value Observed: 0.198 

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

• PubMed: 22366302 
• DOI: 10.1016/j.jmb.2012.02.018
• Primary Citation of Related Structures:  
  3V4L, 3V4O, 3V55


• 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 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Mucosa-associated lymphoid tissue lymphoma translocation protein 1	A	389	Homo sapiens	Mutation(s): 0  Gene Names: MALT1, MLT EC: 3.4.22
Find proteins for Q9UDY8 (Homo sapiens) Explore Q9UDY8  Go to UniProtKB:  Q9UDY8
NIH Common Fund Data Resources
PHAROS:  Q9UDY8 GTEx:  ENSG00000172175

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.81 Å
• R-Value Free: 0.238 
• R-Value Work: 0.196 
• R-Value Observed: 0.198 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 96.65	α = 90
b = 67.25	β = 97.31
c = 58.04	γ = 90

Software Package:

Software Name	Purpose
Adxv	data processing
PHASER	phasing
BUSTER	refinement
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-12-16 
• Released Date: 2012-03-14 
Deposition Author(s): Renatus, M., Wiesmann, C.

Revision History 

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