ISDA

Deposition Date 2018-10-03

Release Date 2019-01-30

Last Version Date 2024-11-20

Entry Detail

PDB ID:

6MNY

Keywords:

TRANSFERASE

Title:

Crystal structure of mouse BTK kinase domain in complex with compound 9a

Biological Source:

Source Organism:

Mus musculus (Taxon ID: 10090)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.80 Å

R-Value Free:

0.25

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Tyrosine-protein kinase
Chain IDs:A, B
Chain Length:276
Number of Molecules:2
Biological Source:Mus musculus

UniProt ID:P35991 Pfam ID:PF07714

Ligand Molecules

JVP

Primary Citation

Aminopyrazole Carboxamide Bruton's Tyrosine Kinase Inhibitors. Irreversible to Reversible Covalent Reactive Group Tuning.

Schnute, M.E, Benoit, S.E, Buchler, I.P, Caspers, N, Grapperhaus, M.L, Han, S, Hotchandani, R, Huang, N, Hughes, R.O, Juba, B.M, Kim, K.H, Liu, E, McCarthy, E, Messing, D, Miyashiro, J.S, Mohan, S, O'Connell, T.N, Ohren, J.F, Parikh, M.D, Schmidt, M, Selness, S.R, Springer, J.R, Thanabal, V, Trujillo, J.I, Walker, D.P, Wan, Z.K, Withka, J.M, Wittwer, A.J, Wood, N.L, Xing, L, Zapf, C.W, Douhan III, J.Show

ACS Med Chem Lett 10 80 85 (2019)

PMID: 30655951 DOI: 10.1021/acsmedchemlett.8b00461

Abstact

Potent covalent inhibitors of Bruton's tyrosine kinase (BTK) based on an aminopyrazole carboxamide scaffold have been identified. Compared to acrylamide-based covalent reactive groups leading to irreversible protein adducts, cyanamide-based reversible-covalent inhibitors provided the highest combined BTK potency and EGFR selectivity. The cyanamide covalent mechanism with BTK was confirmed through enzyme kinetic, NMR, MS, and X-ray crystallographic studies. The lead cyanamide-based inhibitors demonstrated excellent kinome selectivity and rat pharmacokinetic properties.

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Primary Citation of related structures