JAK2 kinase (JH1 domain) triple mutant in complex with compound 12JAK2 kinase (JH1 domain) triple mutant in complex with compound 12

Structural highlights

4e6q is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.948Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Publication Abstract from PubMed

A therapeutic rationale is proposed for the treatment of inflammatory diseases, such as rheumatoid arthritis (RA), by specific targeting of the JAK1 pathway. Examination of the preferred binding conformation of clinically effective, pan-JAK inhibitor 1 led to identification of a novel, tricyclic hinge binding scaffold 3. Exploration of SAR through a series of cycloamino and cycloalkylamino analogs demonstrated this template to be highly tolerant of substitution, with a predisposition to moderate selectivity for the JAK1 isoform over JAK2. This study culminated in the identification of sub-nanomolar JAK1 inhibitors such as 22 and 49, having excellent cell potency, good rat pharmacokinetic characteristics, and excellent kinase selectivity. Determination of the binding modes of the series in JAK1 and JAK2 by X-ray crystallography supported the design of analogs to enhance affinity and selectivity.

Identification of Imidazo-pyrrolopyridines as Novel and Potent JAK1 Inhibitors.,Kulagowski J J Med Chem. 2012 May 16. PMID:22591402[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Kulagowski J. Identification of Imidazo-pyrrolopyridines as Novel and Potent JAK1 Inhibitors. J Med Chem. 2012 May 16. PMID:22591402 doi:10.1021/jm300438j

4e6q, resolution 1.95Å

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