9FZR | pdb_00009fzr

Wild-type EGFR in covalent complex with Poziotinib analogue

• PDB DOI: https://doi.org/10.2210/pdb9FZR/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-07-05 Released: 2025-07-16 
• Deposition Author(s): Anthony, N., Pintar, S., Noble, M.E.N., Martin, M.P.
• Funding Organization(s): Cancer Research UK, Engineering and Physical Sciences Research Council

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free: 
  0.233 (Depositor), 0.233 (DCC) 
• R-Value Work: 
  0.186 (Depositor), 0.186 (DCC) 

Starting Model: experimental

Literature

Insights into structure-reactivity-activity relationships for covalent inhibitors from profiling the EGFR activity of poziotinib analogues

Waring, M.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 37.9 kDa 
• Atom Count: 2,890 
• Modeled Residue Count: 324 
• Deposited Residue Count: 329 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Epidermal growth factor receptor	A	329	Homo sapiens	Mutation(s): 0  Gene Names: EGFR, ERBB, ERBB1, HER1 EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for P00533 (Homo sapiens) Explore P00533  Go to UniProtKB:  P00533
PHAROS:  P00533 GTEx:  ENSG00000146648

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1IHC (Subject of Investigation/LOI)	B [auth A]	1-[(3~{S})-3-[4-[(3-chloranyl-4-fluoranyl-phenyl)amino]-7-methoxy-quinazolin-6-yl]oxypyrrolidin-1-yl]propan-1-one C22 H22 Cl F N4 O3 GBUJQSIKHBSPDW-AWEZNQCLSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free:  0.233 (Depositor), 0.233 (DCC) 
• R-Value Work:  0.186 (Depositor), 0.186 (DCC) 

Space Group: I 2 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 145.823	α = 90
b = 145.823	β = 90
c = 145.823	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
xia2	data reduction
pointless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-07-16 
Deposition Author(s): Anthony, N., Pintar, S., Noble, M.E.N., Martin, M.P.

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Funding Organization	Location	Grant Number
Cancer Research UK	United Kingdom	C2115/A21421
Engineering and Physical Sciences Research Council	United Kingdom	EP/R51309X/1
Cancer Research UK	United Kingdom	DRCDDRPGMApr2020100002

Revision History  

• Version 1.0: 2025-07-16
  Type: Initial release