ISDA

Deposition Date 2013-02-04

Release Date 2014-02-19

Last Version Date 2024-11-06

Entry Detail

PDB ID:

4J23

Keywords:

SIGNALING PROTEIN/transferase

Title:

Low resolution crystal structure of the FGFR2D2D3/FGF1/SR128545 complex

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.88 Å

R-Value Free:

0.38

R-Value Work:

0.32

R-Value Observed:

0.32

Space Group:

P 62 2 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Fibroblast growth factor receptor 2
Gene (Uniprot):FGFR2
Chain IDs:A
Chain Length:223
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P21802 Pfam ID:PF07679, PF13927 EC:2.7.10.1

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Fibroblast growth factor 1
Gene (Uniprot):FGF1
Chain IDs:B
Chain Length:138
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P05230 Pfam ID:PF00167

Ligand Molecules

Primary Citation

Molecular mechanism of SSR128129E, an extracellularly acting, small-molecule, allosteric inhibitor of FGF receptor signaling.

Herbert, C, Schieborr, U, Saxena, K, Juraszek, J, De Smet, F, Alcouffe, C, Bianciotto, M, Saladino, G, Sibrac, D, Kudlinzki, D, Sreeramulu, S, Brown, A, Rigon, P, Herault, J.P, Lassalle, G, Blundell, T.L, Rousseau, F, Gils, A, Schymkowitz, J, Tompa, P, Herbert, J.M, Carmeliet, P, Gervasio, F.L, Schwalbe, H, Bono, F.Show

Cancer Cell 23 489 501 (2013)

PMID: 23597563 DOI: 10.1016/j.ccr.2013.02.018

Abstact

The fibroblast growth factor (FGF)/fibroblast growth factor receptor (FGFR) signaling network plays an important role in cell growth, survival, differentiation, and angiogenesis. Deregulation of FGFR signaling can lead to cancer development. Here, we report an FGFR inhibitor, SSR128129E (SSR), that binds to the extracellular part of the receptor. SSR does not compete with FGF for binding to FGFR but inhibits FGF-induced signaling linked to FGFR internalization in an allosteric manner, as shown by crystallography studies, nuclear magnetic resonance, Fourier transform infrared spectroscopy, molecular dynamics simulations, free energy calculations, structure-activity relationship analysis, and FGFR mutagenesis. Overall, SSR is a small molecule allosteric inhibitor of FGF/FGFR signaling, acting via binding to the extracellular part of the FGFR.

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