9KFU | pdb_00009kfu

Human FGFR3 in complex with inhibitor F1

PDB DOI: https://doi.org/10.2210/pdb9KFU/pdb

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

Deposited: 2024-11-07 Released: 2025-09-03
Deposition Author(s): Zhang, J., Song, K., Li, M.Y.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.40 Å
R-Value Free:
0.251 (Depositor), 0.235 (DCC)
R-Value Work:
0.228 (Depositor)
R-Value Observed:
0.229 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.0 of the entry. See complete history.

Literature

Electron-density-informed effective and reliable de novo molecular design and optimization with ED2Mol

Li, M., Song, K., He, J., Zhao, M., You, G., Zhong, J., Zhao, M., Li, A., Chen, Y., Li, G., Kong, Y., Wei, J., Wang, Z., Zhou, J., Yang, H., Ma, S., Zhang, H., Melita, I.L., Lin, W., Lu, Y., Yu, Z., Lu, X., Zhao, Y., Zhang, J.

(2025) Nat Mach Intell 7: 1355-1368

DOI: https://doi.org/10.1038/s42256-025-01095-7

Macromolecule Content

Total Structure Weight: 35.44 kDa
Atom Count: 2,471
Modeled Residue Count: 288
Deposited Residue Count: 309
Unique protein chains: 1

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fibroblast growth factor receptor 3	A	309	Homo sapiens	Mutation(s): 0 Gene Names: FGFR3, JTK4 EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for P22607 (Homo sapiens) Explore P22607 Go to UniProtKB: P22607
PHAROS: P22607 GTEx: ENSG00000068078
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P22607
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1L5T (Subject of Investigation/LOI) Query on A1L5T Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	(7~{S})-2-azanyl-7-(4-fluorophenyl)-6,7-dihydro-4~{H}-[1,3]thiazolo[4,5-b]pyridin-5-one C₁₂ H₁₀ F N₃ O S OFXLNTLGSXLVSA-QMMMGPOBSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]
SO4 Query on SO4 Download:Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] mmCIF format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain E [auth A] mmCIF format, chain F [auth A]	C [auth A], D [auth A], E [auth A], F [auth A]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A]
CO Query on CO Download:Ideal Coordinates CCD File SDF format, chain G [auth A] MOL2 format, chain G [auth A] mmCIF format, chain G [auth A]	G [auth A]	COBALT (II) ION Co XLJKHNWPARRRJB-UHFFFAOYSA-N		Interactions Focus chain G [auth A] Interactions & Density Focus chain G [auth A]