3EKK

Insulin receptor kinase complexed with an inhibitor

• PDB DOI: https://doi.org/10.2210/pdb3EKK/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): Yes 


• Deposited: 2008-09-19 Released: 2008-12-23 
• Deposition Author(s): Chamberlain, S., Atkins, C., Deanda, F., Dumble, M., Gerding, R., Groy, A., Korenchuk, S., Kumar, R., Lei, H., Mook, R., Moorthy, G., Redman, A., Rowland, J., Sabbatini, P., Shewchuk, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.260 
• R-Value Work: 0.204 
• R-Value Observed: 0.207 

Starting Model: experimental

Literature

Discovery of 4,6-bis-anilino-1H-pyrrolo[2,3-d]pyrimidines: Potent inhibitors of the IGF-1R receptor tyrosine kinase.

Chamberlain, S.D., Wilson, J.W., Deanda, F., Patnaik, S., Redman, A.M., Yang, B., Shewchuk, L., Sabbatini, P., Leesnitzer, M.A., Groy, A., Atkins, C., Gerding, R., Hassell, A.M., Lei, H., Mook, R.A., Moorthy, G., Rowand, J.L., Stevens, K.L., Kumar, R., Shotwell, J.B.

(2009) Bioorg Med Chem Lett 19: 469-473

• PubMed: 19056263 
• DOI: https://doi.org/10.1016/j.bmcl.2008.11.046
• Primary Citation of Related Structures:  
  3EKK


• PubMed Abstract: 
  

  The evaluation of a series of 4,6-bis-anilino-1H-pyrrolo[2,3-d]pyrimidines as inhibitors of the IGF-1R (IGF-IR) receptor tyrosine kinase is reported. Examples demonstrate nanomolar potencies in in vitro enzyme and mechanistic cellular assays as well as promising in vivo pharmacokinetics in rat.

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Organizational Affiliation: 

GlaxoSmithKline, Oncology R&D, 5 Moore Drive, 3.4184.4B, PO Box 13398, Research Triangle Park, NC 27709-3398, USA.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 35.38 kDa 
• Atom Count: 2,666 
• Modelled Residue Count: 285 
• Deposited Residue Count: 307 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Insulin receptor	A	307	Homo sapiens	Mutation(s): 2  Gene Names: INSR EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for P06213 (Homo sapiens) Explore P06213  Go to UniProtKB:  P06213
PHAROS:  P06213 GTEx:  ENSG00000171105

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GS2	B [auth A]	2-[(2-{[1-(N,N-dimethylglycyl)-5-methoxy-1H-indol-6-yl]amino}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]-6-fluoro-N-methylbenzamide C27 H27 F N8 O3 DESOLSKAHZZIGK-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.260 
• R-Value Work: 0.204 
• R-Value Observed: 0.207 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.251	α = 90
b = 70.487	β = 90
c = 88.6	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-12-23 
Deposition Author(s): Chamberlain, S., Atkins, C., Deanda, F., Dumble, M., Gerding, R., Groy, A., Korenchuk, S., Kumar, R., Lei, H., Mook, R., Moorthy, G., Redman, A., Rowland, J., Sabbatini, P., Shewchuk, L.

Revision History  

• Version 1.0: 2008-12-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2021-10-20
  Changes: Database references, Derived calculations
• Version 1.3: 2023-08-30
  Changes: Data collection, Refinement description