ISDA

Deposition Date 2006-03-27

Release Date 2007-03-27

Last Version Date 2024-02-14

Entry Detail

PDB ID:

2GHG

Keywords:

TRANSFERASE

Title:

h-CHK1 complexed with A431994

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.50 Å

R-Value Free:

0.31

R-Value Work:

0.22

R-Value Observed:

0.24

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Serine/threonine-protein kinase Chk1
Gene (Uniprot):CHEK1
Chain IDs:A
Chain Length:269
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:O14757 Pfam ID:PF00069 EC:2.7.11.1

Ligand Molecules

A53

Primary Citation

Discovery and SAR of oxindole-pyridine-based protein kinase B/Akt inhibitors for treating cancers.

Zhu, G.D, Gandhi, V.B, Gong, J, Luo, Y, Liu, X, Shi, Y, Guan, R, Magnone, S.R, Klinghofer, V, Johnson, E.F, Bouska, J, Shoemaker, A, Oleksijew, A, Jarvis, K, Park, C, De Jong, R, Oltersdorf, T, Li, Q, Rosenberg, S.H, Giranda, V.L.Show

Bioorg.Med.Chem.Lett. 16 3424 3429 (2006)

PMID: 16644221 DOI: 10.1016/j.bmcl.2006.04.005

Abstact

We describe a series of potent and selective oxindole-pyridine-based protein kinase B/Akt inhibitors. The most potent compound 11n in this series demonstrated an IC(50) of 0.17nM against Akt1 and more than 100-fold selectivity over other Akt isozymes. The selectivity against other protein kinases was highly dependent on the C-3 substitutions at the oxindole scaffold, with unsubstituted 9e or 3-furan-2-ylmethylene (11n) more selective and 3-(1H-pyrrol-2-yl)methylene (11f) or 3-(1H-imidazol-2-yl)methylene (11k) less selective. In a mouse xenograft model, 9d, 11f, and 11n inhibited tumor growth but with accompanying toxicity.

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Primary Citation of related structures