9CD7

FGFR3 Kinase Domain with Inhibitor TYRA-300


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.53 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.229 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Discovery of TYRA-300: First Oral Selective FGFR3 Inhibitor for the Treatment of Urothelial Cancers and Achondroplasia.

Hudkins, R.L.Allen, E.Balcer, A.Hoffman, I.D.Iyer, S.Neal, M.Nelson, K.J.Rideout, M.Ye, Q.Starrett, J.H.Patel, P.Harris, T.Swanson, R.V.Bensen, D.C.

(2024) J Med Chem 67: 16737-16756

  • DOI: https://doi.org/10.1021/acs.jmedchem.4c01531
  • Primary Citation of Related Structures:  
    9CD5, 9CD7

  • PubMed Abstract: 

    Activating FGFR3 alterations have been identified in up to 15-20% of muscle-invasive bladder cancer and metastatic urothelial carcinoma (mUC), and as high as 80% in nonmuscle invasive bladder cancers. FGFR3 germline mutations have also been associated with a variety of skeletal dysplasias. Achondroplasia, the most common form of dwarfism in humans, results from a G380R mutation in FGFR3. The pan-FGFR inhibitor erdafitinib was approved for the treatment of mUC with FGFR3 alterations but is limited due to FGFR isoform off-target toxicities and the development of on-target gatekeeper resistance mutations. TYRA-300 ( 22 ) was conceived using a structure-based approach as a potent FGFR3-selective inhibitor to avoid the toxicities associated with inhibition of FGFR1, FGFR2, and FGFR4, and to be agnostic for the FGFR3 gatekeeper mutations. TYRA-300 is being evaluated in a Phase 1 clinical trial in urothelial cancers and solid tumors, with intention to initiate Phase 2 studies in urothelial cancers and achondroplasia.


  • Organizational Affiliation

    Tyra Biosciences, Inc., 2656 State Street, Carlsbad, California 92008, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Fibroblast growth factor receptor 3
A, B, C
312Homo sapiensMutation(s): 3 
Gene Names: FGFR3JTK4
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 Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP22607
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
A1AV2 (Subject of Investigation/LOI)
Query on A1AV2

Download Ideal Coordinates CCD File 
D [auth A],
I [auth B],
R [auth C]
(3P)-5-[(1R)-1-(3,5-dichloropyridin-4-yl)ethoxy]-3-{6-[6-(methanesulfonyl)-2,6-diazaspiro[3.3]heptan-2-yl]pyridin-3-yl}-1H-indazole
C25 H24 Cl2 N6 O3 S
JOAFWIHZEBKYQK-OAHLLOKOSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
P [auth B],
Q [auth B],
Y [auth C],
Z [auth C]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
GOL
Query on GOL

Download Ideal Coordinates CCD File 
E [auth A]
F [auth A]
G [auth A]
H [auth A]
J [auth B]
E [auth A],
F [auth A],
G [auth A],
H [auth A],
J [auth B],
K [auth B],
L [auth B],
M [auth B],
N [auth B],
O [auth B],
S [auth C],
T [auth C],
U [auth C],
V [auth C],
W [auth C],
X [auth C]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.53 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.229 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 180.686α = 90
b = 55.588β = 127.452
c = 138.668γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
Aimlessdata scaling
XDSdata reduction
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not fundedUnited States--

Revision History  (Full details and data files)

  • Version 1.0: 2024-09-25
    Type: Initial release
  • Version 1.1: 2024-10-02
    Changes: Database references