Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 66.7 kDa 
• Atom Count: 4,159 
• Modelled Residue Count: 490 
• Deposited Residue Count: 572 
• Unique protein chains: 1

 6HVF

Kinase domain of cSrc in complex with compound 29B

• PDB DOI:  https://doi.org/10.2210/pdb6HVF/pdb

• Classification: TRANSFERASE
• Organism(s): Gallus gallus
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2018-10-10 Released: 2019-10-23 
• Deposition Author(s): Keul, M., Mueller, M.P., Rauh, D.
• Funding Organization(s): German Federal Ministry for Education and Research

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.245 
• R-Value Work: 0.211 
• R-Value Observed: 0.212 

Literature

Inhibition of osimertinib-resistant epidermal growth factor receptor EGFR-T790M/C797S.

Lategahn, J., Keul, M., Klovekorn, P., Tumbrink, H.L., Niggenaber, J., Muller, M.P., Hodson, L., Flasshoff, M., Hardick, J., Grabe, T., Engel, J., Schultz-Fademrecht, C., Baumann, M., Ketzer, J., Muhlenberg, T., Hiller, W., Gunther, G., Unger, A., Muller, H., Heimsoeth, A., Golz, C., Blank-Landeshammer, B., Kollipara, L., Zahedi, R.P., Strohmann, C., Hengstler, J.G., van Otterlo, W.A.L., Bauer, S., Rauh, D.

(2019) Chem Sci 10: 10789-10801

• PubMed: 31857889 
• DOI: https://doi.org/10.1039/c9sc03445e
• Primary Citation of Related Structures:  
  6HVE, 6HVF, 6S89, 6S8A


• PubMed Abstract: 
  

Precision medicine has revolutionized the treatment of patients in EGFR driven non-small cell lung cancer (NSCLC). Targeted drugs show high response rates in genetically defined subsets of cancer patients and markedly increase their progression-free survival as compared to conventional chemotherapy. However, recurrent acquired drug resistance limits the success of targeted drugs in long-term treatment and requires the constant development of novel efficient inhibitors of drug resistant cancer subtypes. Herein, we present covalent inhibitors of the drug resistant gatekeeper mutant EGFR-L858R/T790M based on the pyrrolopyrimidine scaffold. Biochemical and cellular characterization, as well as kinase selectivity profiling and western blot analysis, substantiate our approach. Moreover, the developed compounds possess high activity against multi drug resistant EGFR-L858R/T790M/C797S in biochemical assays due to their highly reversible binding character, that was revealed by characterization of the binding kinetics. In addition, we present the first X-ray crystal structures of covalent inhibitors in complex with C797S-mutated EGFR which provide detailed insight into their binding mode.

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Organizational Affiliation: 

Drug Discovery Hub Dortmund (DDHD), Zentrum für Integrierte Wirkstoffforschung (ZIW) , 44227 Dortmund , Germany.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Proto-oncogene tyrosine-protein kinase Src	A, B	286	Gallus gallus	Mutation(s): 2  Gene Names: SRC EC: 2.7.10.2
UniProt
Find proteins for P00523 (Gallus gallus) Explore P00523  Go to UniProtKB:  P00523

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GUT	C [auth A], F [auth B]	~{N}-[3-[3-ethyl-6-[4-(4-methylpiperazin-1-yl)phenyl]-4-oxidanylidene-7~{H}-pyrrolo[2,3-d]pyrimidin-5-yl]phenyl]prop-2-enamide C28 H30 N6 O2 SJISLOFCWOMXJD-UHFFFAOYSA-N
EDO	D [auth A], E [auth A], G [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.245 
• R-Value Work: 0.211 
• R-Value Observed: 0.212 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.17	α = 100.23
b = 62.97	β = 91.64
c = 74.54	γ = 90.03

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-10-23 
Deposition Author(s): Keul, M., Mueller, M.P., Rauh, D.

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Funding Organization	Location	Grant Number
German Federal Ministry for Education and Research	Germany	01GS08104
German Federal Ministry for Education and Research	Germany	01ZX1303C

Revision History  

• Version 1.0: 2019-10-23
  Type: Initial release
  
• Version 1.1: 2019-11-13
  Changes: Data collection, Database references
• Version 1.2: 2020-01-01
  Changes: Database references