ISDA

Deposition Date 2009-08-14

Release Date 2009-11-10

Last Version Date 2024-10-30

Entry Detail

PDB ID:

3IOK

Keywords:

TRANSFERASE

Title:

2-Aminopyrazolo[1,5-a]pyrimidines as potent and selective inhibitors of JAK2

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.10 Å

R-Value Free:

0.27

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

C 2 2 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Tyrosine-protein kinase JAK2
Gene (Uniprot):JAK2
Chain IDs:A
Chain Length:313
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:O60674 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

1P6

Primary Citation

2-Aminopyrazolo[1,5-a]pyrimidines as potent and selective inhibitors of JAK2.

Ledeboer, M.W, Pierce, A.C, Duffy, J.P, Gao, H, Messersmith, D, Salituro, F.G, Nanthakumar, S, Come, J, Zuccola, H.J, Swenson, L, Shlyakter, D, Mahajan, S, Hoock, T, Fan, B, Tsai, W.J, Kolaczkowski, E, Carrier, S, Hogan, J.K, Zessis, R, Pazhanisamy, S, Bennani, Y.L.Show

Bioorg.Med.Chem.Lett. 19 6529 6533 (2009)

PMID: 19857967 DOI: 10.1016/j.bmcl.2009.10.053

Abstact

Constitutive activation of the EPO/JAK2 signaling cascade has recently been implicated in a variety of myeloproliferative disorders including polycythemia vera, essential thrombocythemia and myelofibrosis. In an effort to uncover therapeutic potential of blocking the EPO/JAK2 signaling cascade, we sought to discover selective inhibitors that block the kinase activity of JAK2. Herein, we describe the discovery and structure based optimization of a novel series of 2-amino-pyrazolo[1,5-a]pyrimidines that exhibit potent inhibition of JAK2.

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