Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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

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

Macromolecule Content

• Total Structure Weight: 34.53 kDa 
• Atom Count: 2288 
• Residue Count: 261 
• Unique protein chains: 1

3NLB

Novel kinase profile highlights the temporal basis of context dependent checkpoint pathways to cell death

• DOI: 10.2210/pdb3NLB/pdb

• Classification: TRANSFERASE/TRANSFERASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2010-06-21 Released: 2011-05-18 
• Deposition Author(s): Massey, A.J., Borgognoni, J., Bentley, C., Foloppe, N., Fiumana, A., Walmsley, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.241 
• R-Value Work: 0.181 
• R-Value Observed: 0.184 

Literature

Context-dependent cell cycle checkpoint abrogation by a novel kinase inhibitor

Massey, A.J., Borgognoni, J., Bentley, C., Foloppe, N., Fiumana, A., Walmsley, L.

(2010) PLoS One 5: e13123-e13123

• PubMed: 20976184 
• DOI: 10.1371/journal.pone.0013123
• Primary Citation of Related Structures:  
  3NLB


• PubMed Abstract: 
  

Checkpoint kinase 1 and 2 (Chk1/Chk2), and the Aurora kinases play a critical role in the activation of the DNA damage response and mitotic spindle checkpoints. We have identified a novel inhibitor of these kinases and utilized this molecule to probe the functional interplay between these two checkpoints.

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Organizational Affiliation: 

Vernalis R&D Ltd, Granta Park, Cambridge, United Kingdom. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase Chk1	A	297	Homo sapiens	Mutation(s): 0  Gene Names: CHEK1, CHK1 EC: 2.7.11.1
Find proteins for O14757 (Homo sapiens) Explore O14757  Go to UniProtKB:  O14757
NIH Common Fund Data Resources
PHAROS:  O14757 GTEx:  ENSG00000149554

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
5BE	A	3-methyl-5-[5-(1-methylethyl)-1H-benzimidazol-2-yl]-N-(1-methylpiperidin-4-yl)-1H-pyrazole-4-carboxamide C21 H28 N6 O PFGGMNGDLVJXNC-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
5BE	IC50:  35   nM  Binding MOAD
5BE	IC50 :  35   nM  PDBBind

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.241 
• R-Value Work: 0.181 
• R-Value Observed: 0.184 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.885	α = 90
b = 65.71	β = 102.7
c = 54.42	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-06-21 
• Released Date: 2011-05-18 
Deposition Author(s): Massey, A.J., Borgognoni, J., Bentley, C., Foloppe, N., Fiumana, A., Walmsley, L.

Revision History 

• Version 1.0: 2011-05-18
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance