2OF2

crystal structure of furanopyrimidine 8 bound to lck

• PDB DOI: https://doi.org/10.2210/pdb2OF2/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2007-01-02 Released: 2007-02-27 
• Deposition Author(s): Martin, M.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.261 
• R-Value Work: 0.260 

Starting Model: experimental

Literature

Discovery of novel 2,3-diarylfuro[2,3-b]pyridin-4-amines as potent and selective inhibitors of Lck: Synthesis, SAR, and pharmacokinetic properties.

Martin, M.W., Newcomb, J., Nunes, J.J., Bemis, J.E., McGowan, D.C., White, R.D., Buchanan, J.L., Dimauro, E.F., Boucher, C., Faust, T., Hsieh, F., Huang, X., Lee, J.H., Schneider, S., Turci, S.M., Zhu, X.

(2007) Bioorg Med Chem Lett 17: 2299-2304

• PubMed: 17276681 
• DOI: https://doi.org/10.1016/j.bmcl.2007.01.048
• Primary Citation of Related Structures:  
  2OF2, 2OF4


• PubMed Abstract: 
  

  2,3-Diarylfuro[2,3-b]pyridine-4-amines are a novel class of potent and selective inhibitors of Lck. The discovery, synthesis, and structure activity relationships of this series of inhibitors are reported. The most promising compounds were also profiled to deduce their pharmacokinetic properties.

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Organizational Affiliation: 

Department of Medicinal Chemistry, Amgen Inc., One Kendall Square, Building 1000, Cambridge, MA 02139, USA. [e-mail]

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 31.74 kDa 
• Atom Count: 2,349 
• Modelled Residue Count: 271 
• Deposited Residue Count: 271 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Proto-oncogene tyrosine-protein kinase LCK	A	271	Homo sapiens	Mutation(s): 0  Gene Names: LCK EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for P06239 (Homo sapiens) Explore P06239  Go to UniProtKB:  P06239
PHAROS:  P06239 GTEx:  ENSG00000182866

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
547	B [auth A]	2,3-DIPHENYL-N-(2-PIPERAZIN-1-YLETHYL)FURO[2,3-B]PYRIDIN-4-AMINE C25 H26 N4 O QUIQCYFSBGOBKE-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
547	BindingDB:  2OF2	IC50: 210 (nM) from 1 assay(s)
	PDBBind:  2OF2	IC50: 210 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.261 
• R-Value Work: 0.260 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.2	α = 90
b = 74.3	β = 90
c = 92	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
AMoRE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-02-27 
Deposition Author(s): Martin, M.W.

Revision History  

• Version 1.0: 2007-02-27
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-30
  Changes: Data collection, Database references, Refinement description