ISDA

Entry Detail

PDB ID:

4ZLY

Keywords:

Transferase/Transferase Inhibitor

Title:

Crystal Structure of Bruton's Tyrosine Kinase bound to a Cinnoline Fragment

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

unidentified baculovirus

PDB Version:

Deposition Date:

2015-05-01

Release Date:

2015-07-01

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.65 Å

R-Value Free:

0.19

R-Value Work:

0.16

R-Value Observed:

0.16

Space Group:

P 21 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Tyrosine-protein kinase BTK
Chain IDs:A
Chain Length:270
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q06187 Pfam ID:PF07714 EC:2.7.10.2

Ligand Molecules

4RU

DMS

IMD

IPA

Primary Citation

Fragment-Based Discovery of a Small Molecule Inhibitor of Bruton's Tyrosine Kinase.

Smith, C.R, Dougan, D.R, Komandla, M, Kanouni, T, Knight, B, Lawson, J.D, Sabat, M, Taylor, E.R, Vu, P, Wyrick, C.Show

J.Med.Chem. 58 5437 5444 (2015)

PMID: 26087137 DOI: 10.1021/acs.jmedchem.5b00734

Abstact

The discovery and optimization of a series of 4-aminocinnoline-3-carboxamide inhibitors of Bruton's tyrosine kinase are reported. A fragment-based screening approach incorporating X-ray co-crystallography was used to identify a cinnoline fragment and characterize its binding mode in the ATP binding site of Btk. Optimization of the fragment hit resulted in the identification of a lead compound which reduced paw swelling in a dose- and exposure-dependent fashion in a rat model of collagen-induced arthritis.

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