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: 70.99 kDa 
• Atom Count: 4,556 
• Modelled Residue Count: 566 
• Deposited Residue Count: 616 
• Unique protein chains: 1

 5Z0S

Crystal structure of FGFR1 kinase domain in complex with a novel inhibitor

• PDB DOI:  https://doi.org/10.2210/pdb5Z0S/pdb

• Classification: TRANSFERASE/TRANSFERASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2017-12-20 Released: 2018-12-26 
• Deposition Author(s): Liu, Q., Xu, Y.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.45 Å
• R-Value Free: 0.275 
• R-Value Work: 0.225 
• R-Value Observed: 0.227 

Literature

Structure-Based Discovery of a Series of 5H-Pyrrolo[2,3-b]pyrazine FGFR Kinase Inhibitors

Jiang, A., Liu, Q., Wang, R., Wei, P., Dai, Y., Wang, X., Xu, Y., Ma, Y., Ai, J., Shen, J., Ding, J., Xiong, B.

(2018) Molecules 23

• PubMed: 29562726 
• DOI: https://doi.org/10.3390/molecules23030698
• Primary Citation of Related Structures:  
  5Z0S


• PubMed Abstract: 
  

Fibroblast growth factor receptors (FGFRs), a subfamily of receptor tyrosine kinases, are aberrant in various cancer types, and considered to be promising targets for cancer therapy. We started with a weak-active compound that was identified from our internal hepatocyte growth factor receptor (also called c-Met) inhibitor project, and optimized it with the guidance of a co-crystal structure of compound 8 with FGFR1. Through rational design, synthesis, and the biological evaluation of a series of 5 H -pyrrolo[2,3- b ]pyrazine derivatives, we discovered several potent FGFR kinase inhibitors. Among them, compound 13 displayed high selectivity and favorable metabolic properties, demonstrating a promising lead for further development.

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Organizational Affiliation: 

Department of Medicinal Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China. [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fibroblast growth factor receptor 1	A, B	308	Homo sapiens	Mutation(s): 2  Gene Names: FGFR1, BFGFR, CEK, FGFBR, FLG, FLT2, HBGFR EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for P11362 (Homo sapiens) Explore P11362  Go to UniProtKB:  P11362
PHAROS:  P11362

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
960	C [auth A], D [auth B]	1-[(6-chloroimidazo[1,2-b]pyridazin-3-yl)sulfonyl]-6-(1-methyl-1H-pyrazol-4-yl)-1H-pyrazolo[4,3-b]pyridine C16 H11 Cl N8 O2 S SOZCWCPVKIINOB-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.45 Å
• R-Value Free: 0.275 
• R-Value Work: 0.225 
• R-Value Observed: 0.227 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 210.13	α = 90
b = 57.98	β = 107.38
c = 65.36	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
SCALA	data scaling
PHASER	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2018-12-26 
Deposition Author(s): Liu, Q., Xu, Y.

Revision History  

• Version 1.0: 2018-12-26
  Type: Initial release