ISDA

Entry Detail

PDB ID:

6VFZ

Keywords:

Title:

Crystal Structure of Human Mitochondrial Isocitrate Dehydrogenase (IDH2) R140Q Mutant Homodimer in Complex with NADPH and AG-881 (Vorasidenib) Inhibitor.

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Spodoptera frugiperda

PDB Version:

Deposition Date:

2020-01-07

Release Date:

2020-02-05

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.99 Å

R-Value Free:

0.20

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Isocitrate dehydrogenase [NADP], mitochondrial
Chain IDs:A, B
Chain Length:458
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P48735 Pfam ID:PF00180 EC:1.1.1.42

Ligand Molecules

9UO

NDP

Primary Citation

Vorasidenib (AG-881): A First-in-Class, Brain-Penetrant Dual Inhibitor of Mutant IDH1 and 2 for Treatment of Glioma.

Konteatis, Z, Artin, E, Nicolay, B, Straley, K, Padyana, A.K, Jin, L, Chen, Y, Narayaraswamy, R, Tong, S, Wang, F, Zhou, D, Cui, D, Cai, Z, Luo, Z, Fang, C, Tang, H, Lv, X, Nagaraja, R, Yang, H, Su, S.M, Sui, Z, Dang, L, Yen, K, Popovici-Muller, J, Codega, P, Campos, C, Mellinghoff, I.K, Biller, S.A.Show

Acs Med.Chem.Lett. 11 101 107 (2020)

PMID: 32071674 DOI: 10.1021/acsmedchemlett.9b00509

Abstact

Inhibitors of mutant isocitrate dehydrogenase (mIDH) 1 and 2 cancer-associated enzymes prevent the accumulation of the oncometabolite d-2-hydroxyglutarate (2-HG) and are under clinical investigation for the treatment of several cancers harboring an IDH mutation. Herein, we describe the discovery of vorasidenib (AG-881), a potent, oral, brain-penetrant dual inhibitor of both mIDH1 and mIDH2. X-ray cocrystal structures allowed us to characterize the compound binding site, leading to an understanding of the dual mutant inhibition. Furthermore, vorasidenib penetrates the brain of several preclinical species and inhibits 2-HG production in glioma tissue by >97% in an orthotopic glioma mouse model. Vorasidenib represents a novel dual mIDH1/2 inhibitor and is currently in clinical development for the treatment of low-grade mIDH glioma.

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Primary Citation of related structures