ISDA

Deposition Date 2011-06-22

Release Date 2011-08-17

Last Version Date 2024-02-28

Entry Detail

PDB ID:

3SKC

Keywords:

Transferase/Transferase Inhibitor

Title:

Human B-Raf Kinase in Complex with an Amide Linked Pyrazolopyridine Inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Trichoplusia ni

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.20 Å

R-Value Free:

0.27

R-Value Work:

0.23

R-Value Observed:

0.23

Space Group:

P 41 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Serine/threonine-protein kinase B-raf
Gene (Uniprot):BRAF
Chain IDs:A, B
Chain Length:307
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P15056 Pfam ID:PF07714 EC:2.7.10.2

Ligand Molecules

BR2

Primary Citation

Pyrazolopyridine inhibitors of B-RafV600E. Part 2: structure-activity relationships.

Wenglowsky, S, Ahrendt, K.A, Buckmelter, A.J, Feng, B, Gloor, S.L, Gradl, S, Grina, J, Hansen, J.D, Laird, E.R, Lunghofer, P, Mathieu, S, Moreno, D, Newhouse, B, Ren, L, Risom, T, Rudolph, J, Seo, J, Sturgis, H.L, Voegtli, W.C, Wen, Z.Show

Bioorg.Med.Chem.Lett. 21 5533 5537 (2011)

PMID: 21802293 DOI: 10.1016/j.bmcl.2011.06.097

Abstact

Structure-activity relationships around a novel series of B-Raf(V600E) inhibitors are reported. The enzymatic and cellular potencies of inhibitors derived from two related hinge-binding groups were compared and3-methoxypyrazolopyridine proved to be superior. The 3-alkoxy group of lead B-Raf(V600E) inhibitor 1 was extended and minimally affected potency. The propyl sulfonamide tail of compound 1, which occupies the small lipophilic pocket formed by an outward shift of the αC-helix, was expanded to a series of arylsulfonamides. X-ray crystallography revealed that this lipophilic pocket unexpectedly enlarges to accommodate the bulkier aryl group.

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Primary Citation of related structures