ISDA

Entry Detail

PDB ID:

4FK6

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

JAK1 kinase (JH1 domain) in complex with compound 72

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Spodoptera frugiperda

PDB Version:

Deposition Date:

2012-06-12

Release Date:

2012-11-07

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.25

R-Value Work:

0.20

R-Value Observed:

0.21

Space Group:

P 1 21 1

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Tyrosine-protein kinase JAK1
Chain IDs:A, B
Chain Length:302
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P23458 Pfam ID:PF07714 EC:2.7.10.2

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
PTR	A	TYR	O-PHOSPHOTYROSINE

Ligand Molecules

0UJ

Primary Citation

Structure-based discovery of C-2 substituted imidazo-pyrrolopyridine JAK1 inhibitors with improved selectivity over JAK2.

Labadie, S, Dragovich, P.S, Barrett, K, Blair, W.S, Bergeron, P, Chang, C, Deshmukh, G, Eigenbrot, C, Ghilardi, N, Gibbons, P, Hurley, C.A, Johnson, A, Kenny, J.R, Kohli, P.B, Kulagowski, J.J, Liimatta, M, Lupardus, P.J, Mendonca, R, Murray, J.M, Pulk, R, Shia, S, Steffek, M, Ubhayakar, S, Ultsch, M, van Abbema, A, Ward, S, Zak, M.Show

Bioorg.Med.Chem.Lett. 22 7627 7633 (2012)

PMID: 23107482 DOI: 10.1016/j.bmcl.2012.10.008

Abstact

Herein we describe our successful efforts in obtaining C-2 substituted imidazo-pyrrolopyridines with improved JAK1 selectivity relative to JAK2 by targeting an amino acid residue that differs between the two isoforms (JAK1: E966; JAK2: D939). Efforts to improve cellular potency by reducing the polarity of the inhibitors are also detailed. The X-ray crystal structure of a representative inhibitor in complex with the JAK1 enzyme is also disclosed.

Legend

Protein

Chemical

Disease

Primary Citation of related structures