4I1R

Human MALT1 (caspase-IG3) in complex with thioridazine

• PDB DOI: https://doi.org/10.2210/pdb4I1R/pdb

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


• Deposited: 2012-11-21 Released: 2013-08-28 
• Deposition Author(s): Schlauderer, F., Lammens, K., Hopfner, K.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.249 
• R-Value Work: 0.201 
• R-Value Observed: 0.205 

Literature

Structural Analysis of Phenothiazine Derivatives as Allosteric Inhibitors of the MALT1 Paracaspase.

Schlauderer, F., Lammens, K., Nagel, D., Vincendeau, M., Eitelhuber, A.C., Verhelst, S.H., Kling, D., Chrusciel, A., Ruland, J., Krappmann, D., Hopfner, K.P.

(2013) Angew Chem Int Ed Engl 52: 10384-10387

• PubMed: 23946259 
• DOI: https://doi.org/10.1002/anie.201304290
• Primary Citation of Related Structures:  
  4I1R

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Organizational Affiliation: 

Gene Center, Department of Biochemistry, Ludwig-Maximilians University Munich, Feodor-Lynen-Strasse 25, 80377 Munich (Germany).

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 44.56 kDa 
• Atom Count: 2,857 
• Modelled Residue Count: 353 
• Deposited Residue Count: 388 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Mucosa-associated lymphoid tissue lymphoma translocation protein 1	A	388	Homo sapiens	Mutation(s): 0  Gene Names: MALT1, MLT EC: 3.4.22
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UDY8 (Homo sapiens) Explore Q9UDY8  Go to UniProtKB:  Q9UDY8
PHAROS:  Q9UDY8 GTEx:  ENSG00000172175

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
LZU	B [auth A]	10-{2-[(2S)-1-methylpiperidin-2-yl]ethyl}-2-(methylsulfanyl)-10H-phenothiazine C21 H26 N2 S2 KLBQZWRITKRQQV-INIZCTEOSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
LZU	PDBBind:  4I1R	Kd: 2.26e+4 (nM) from 1 assay(s)
	BindingDB:  4I1R	IC50: 3430 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.249 
• R-Value Work: 0.201 
• R-Value Observed: 0.205 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 94.838	α = 90
b = 70.608	β = 93.63
c = 57.525	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-08-28 
Deposition Author(s): Schlauderer, F., Lammens, K., Hopfner, K.P.

Revision History  

• Version 1.0: 2013-08-28
  Type: Initial release
  
• Version 1.1: 2013-10-16
  Changes: Database references
• Version 1.2: 2024-02-28
  Changes: Data collection, Database references, Derived calculations