3UW5 image
Entry Detail
PDB ID:
3UW5
Title:
Crystal structure of the BIR domain of MLIAP bound to GDC0152
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2011-11-30
Release Date:
2012-02-22
Method Details:
Experimental Method:
Resolution:
1.71 Å
R-Value Free:
0.16
R-Value Work:
0.15
R-Value Observed:
0.15
Space Group:
P 41 21 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Baculoviral IAP repeat-containing protein 7, Baculoviral IAP repeat-containing protein 4
Mutations:S150G
Chain IDs:A, B
Chain Length:116
Number of Molecules:2
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:GDC-0152
Chain IDs:C (auth: Z), D (auth: Y)
Chain Length:4
Number of Molecules:2
Biological Source:
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
MAA C ALA N-METHYL-L-ALANINE
Peptide-like Molecules
PRD_001020
Primary Citation
Discovery of a Potent Small-Molecule Antagonist of Inhibitor of Apoptosis (IAP) Proteins and Clinical Candidate for the Treatment of Cancer (GDC-0152).
J.Med.Chem. 55 4101 4113 (2012)
PMID: 22413863 DOI: 10.1021/jm300060k

Abstact

A series of compounds were designed and synthesized as antagonists of cIAP1/2, ML-IAP, and XIAP based on the N-terminus, AVPI, of mature Smac. Compound 1 (GDC-0152) has the best profile of these compounds; it binds to the XIAP BIR3 domain, the BIR domain of ML-IAP, and the BIR3 domains of cIAP1 and cIAP2 with K(i) values of 28, 14, 17, and 43 nM, respectively. These compounds promote degradation of cIAP1, induce activation of caspase-3/7, and lead to decreased viability of breast cancer cells without affecting normal mammary epithelial cells. Compound 1 inhibits tumor growth when dosed orally in the MDA-MB-231 breast cancer xenograft model. Compound 1 was advanced to human clinical trials, and it exhibited linear pharmacokinetics over the dose range (0.049 to 1.48 mg/kg) tested. Mean plasma clearance in humans was 9 ± 3 mL/min/kg, and the volume of distribution was 0.6 ± 0.2 L/kg.

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Primary Citation of related structures