3mss

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Abl kinase in complex with imatinib and fragment (FRAG2) in the myristate siteAbl kinase in complex with imatinib and fragment (FRAG2) in the myristate site

Structural highlights

3mss is a 4 chain structure with sequence from Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:,
Activity:Non-specific protein-tyrosine kinase, with EC number 2.7.10.2
Resources:FirstGlance, OCA, RCSB, PDBsum

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Allosteric inhibitors of Bcr-Abl have emerged as a novel therapeutic option for the treatment of CML. Using fragment-based screening, a search for novel Abl inhibitors that bind to the myristate pocket was carried out. Here we show that not all myristate ligands are functional inhibitors, but that the conformational state of C-terminal helix_I is a structural determinant for functional activity. We present an NMR-based conformational assay to monitor the conformation of this crucial helix_I and show that myristate ligands that bend helix_I are functional antagonists, whereas ligands that bind to the myristate pocket but do not induce this conformational change are kinase agonists. Activation of c-Abl by allosteric agonists has been confirmed in a biochemical assay.

Binding or bending: distinction of allosteric Abl kinase agonists from antagonists by an NMR-based conformational assay.,Jahnke W, Grotzfeld RM, Pelle X, Strauss A, Fendrich G, Cowan-Jacob SW, Cotesta S, Fabbro D, Furet P, Mestan J, Marzinzik AL J Am Chem Soc. 2010 May 26;132(20):7043-8. PMID:20450175[1]

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

See Also

References

  1. Jahnke W, Grotzfeld RM, Pelle X, Strauss A, Fendrich G, Cowan-Jacob SW, Cotesta S, Fabbro D, Furet P, Mestan J, Marzinzik AL. Binding or bending: distinction of allosteric Abl kinase agonists from antagonists by an NMR-based conformational assay. J Am Chem Soc. 2010 May 26;132(20):7043-8. PMID:20450175 doi:10.1021/ja101837n

3mss, resolution 1.95Å

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