Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 25186.12 
• Atom Count: 1951 
• Residue Count: 220 
• Unique protein chains: 1

2XU3

CATHEPSIN L WITH A NITRILE INHIBITOR

• DOI: 10.2210/pdb2XU3/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2010-10-14 Released: 2011-01-12 
• Deposition Author(s): Banner, D.W., Benz, J.M., Haap, W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 0.9 Å
• R-Value Free: 0.155 
• R-Value Work: 0.142 

Literature

Systematic Investigation of Halogen Bonding in Protein-Ligand Interactions.

Hardegger, L.A., Kuhn, B., Spinnler, B., Anselm, L., Ecabert, R., Stihle, M., Gsell, B., Thoma, R., Diez, J., Benz, J., Plancher, J.M., Hartmann, G., Banner, D.W., Haap, W., Diederich, F.

(2011) Angew.Chem.Int.Ed.Engl. 50: 314

• PubMed: 21184410 
• DOI: 10.1002/anie.201006781
• Primary Citation of Related Structures:  
  2XU5, 2XU4, 2XU1

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
CATHEPSIN L1	A	220	Homo sapiens	Mutation(s): 0  Gene Names: CTSL (CTSL1) EC: 3.4.22.15
Find proteins for P07711 (Homo sapiens) Go to Gene View: CTSL Go to UniProtKB:  P07711

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
CL	A	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
XU3	A	(2S,4R)-4-(2-chlorophenyl)sulfonyl-1-[1-(5-chlorothiophen-2-yl)cyclopropyl]carbonyl-N-[1-(iminomethyl)cyclopropyl]pyrrolidine-2-carboxamide C23 H23 Cl2 N3 O4 S2 UKVPZPACPGTUIO-UPJLJTPPSA-N
BTB	A	2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL BIS-TRIS BUFFER C8 H19 N O5 OWMVSZAMULFTJU-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
XU3	IC50: 160 nM PDBBIND

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 0.9 Å
• R-Value Free: 0.155 
• R-Value Work: 0.142 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 44.441	α = 90.00
b = 49.394	β = 105.13
c = 46.129	γ = 90.00

Software Package:

Software Name	Purpose
SADABS	data scaling
XDS	data reduction
PHASER	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-10-14 
• Released Date: 2011-01-12 
• Deposition Author(s): Banner, D.W., Benz, J.M., Haap, W.

Revision History 

• Version 1.0: 2011-01-12
  Type: Initial release
• Version 1.1: 2011-05-08
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance