2DCC

X-ray crystal structure analysis of bovine spleen cathepsin B-CA077 complex

• PDB DOI: https://doi.org/10.2210/pdb2DCC/pdb

• Classification: HYDROLASE
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 2006-01-01 Released: 2006-01-24 
• Deposition Author(s): Watanabe, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.93 Å
• R-Value Free: 0.210 
• R-Value Work: 0.192 
• R-Value Observed: 0.192 

Starting Model: experimental

Literature

Quantitative estimation of each active subsite of cathepsin B for the inhibitory activity, based on the inhibitory activitybinding mode relationship of a series of epoxysuccinyl inhibitors by X-ray crystal structure analyses of the complexes

Watanabe, D., Yamamoto, A., Matsumoto, K., Murata, M., Kitamura, K., Tomoo, K., Ishida, T.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 28.63 kDa 
• Atom Count: 2,161 
• Modelled Residue Count: 251 
• Deposited Residue Count: 256 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CATHEPSIN B	A	256	Bos taurus	Mutation(s): 0  EC: 3.4.22.1
UniProt
Find proteins for P07688 (Bos taurus) Explore P07688  Go to UniProtKB:  P07688

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
77B	C [auth A]	BENZYL N-({(2S,3S)-3-[(BENZYLAMINO)CARBONYL]OXIRAN-2-YL}CARBONYL)-L-ISOLEUCYL-L-PROLINATE C29 H35 N3 O6 NFVQITLYIOBLMG-WIGBTLJFSA-N
PO4	B [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
GOL	D [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
77B	BindingDB:  2DCC	IC50: 4.60e+4 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.93 Å
• R-Value Free: 0.210 
• R-Value Work: 0.192 
• R-Value Observed: 0.192 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.32	α = 90
b = 72.32	β = 90
c = 139.82	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-01-24 
Deposition Author(s): Watanabe, D.

Revision History  

• Version 1.0: 2006-01-24
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2017-10-11
  Changes: Refinement description
• Version 1.4: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary
• Version 1.5: 2024-10-30
  Changes: Structure summary