5LGE

Crystal Structure of human IDH1 mutant (R132H) in complex with NADP+ and an Inhibitor related to BAY 1436032

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 

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Literature

Pan-mutant IDH1 inhibitor BAY 1436032 for effective treatment of IDH1 mutant astrocytoma in vivo.

Pusch, S., Krausert, S., Fischer, V., Balss, J., Ott, M., Schrimpf, D., Capper, D., Sahm, F., Eisel, J., Beck, A.C., Jugold, M., Eichwald, V., Kaulfuss, S., Panknin, O., Rehwinkel, H., Zimmermann, K., Hillig, R.C., Guenther, J., Toschi, L., Neuhaus, R., Haegebart, A., Hess-Stumpp, H., Bauser, M., Wick, W., Unterberg, A., Herold-Mende, C., Platten, M., von Deimling, A.

(2017) Acta Neuropathol 133: 629-644

  • DOI: https://doi.org/10.1007/s00401-017-1677-y
  • Primary Citation of Related Structures:  
    5LGE

  • PubMed Abstract: 

    • Mutations in codon 132 of isocitrate dehydrogenase (IDH) 1 are frequent in diffuse glioma, acute myeloid leukemia, chondrosarcoma and intrahepatic cholangiocarcinoma. These mutations result in a neomorphic enzyme specificity which leads to a dramatic increase of intracellular D-2-hydroxyglutarate (2-HG) in tumor cells ...

    Mutations in codon 132 of isocitrate dehydrogenase (IDH) 1 are frequent in diffuse glioma, acute myeloid leukemia, chondrosarcoma and intrahepatic cholangiocarcinoma. These mutations result in a neomorphic enzyme specificity which leads to a dramatic increase of intracellular D-2-hydroxyglutarate (2-HG) in tumor cells. Therefore, mutant IDH1 protein is a highly attractive target for inhibitory drugs. Here, we describe the development and properties of BAY 1436032, a pan-inhibitor of IDH1 protein with different codon 132 mutations. BAY 1436032 strongly reduces 2-HG levels in cells carrying IDH1-R132H, -R132C, -R132G, -R132S and -R132L mutations. Cells not carrying IDH mutations were unaffected. BAY 1436032 did not exhibit toxicity in vitro or in vivo. The pharmacokinetic properties of BAY 1436032 allow for oral administration. In two independent experiments, BAY 1436032 has been shown to significantly prolong survival of mice intracerebrally transplanted with human astrocytoma carrying the IDH1R132H mutation. In conclusion, we developed a pan-inhibitor targeting tumors with different IDH1R132 mutations.

    Organizational Affiliation: 

    Department of Neuropathology, Institute of Pathology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany. andreas.vondeimling@med.uni-heidelberg.de.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Isocitrate dehydrogenase [NADP] cytoplasmicA, B, C, D425Homo sapiensMutation(s): 1 
Gene Names: IDH1, PICD
EC: 1.1.1.42
UniProt & NIH Common Fund Data Resources
Find proteins for O75874 (Homo sapiens)
Explore O75874 
Go to UniProtKB:  O75874
PHAROS:  O75874
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO75874
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAP
Query on NAP
Download Ideal Coordinates CCD File 
E [auth A],
G [auth B],
I [auth C],
L [auth D]		NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H28 N7 O17 P3
XJLXINKUBYWONI-NNYOXOHSSA-N		 Ligand Interaction
6VN
Query on 6VN
Download Ideal Coordinates CCD File 
H [auth B],
N [auth D]		2-[(4-propan-2-ylphenyl)amino]-1-[(1~{S},5~{S})-3,3,5-trimethylcyclohexyl]benzimidazole-5-carboxylic acid
C26 H33 N3 O2
GWMNDWCQEWDFPA-UTKZUKDTSA-N		 Ligand Interaction
EDO
Query on EDO
Download Ideal Coordinates CCD File 
F [auth A],
J [auth C],
K [auth C]		1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N		 Ligand Interaction
ACT
Query on ACT
Download Ideal Coordinates CCD File 
M [auth D]ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
6VN BindingDB:  5LGE IC50: 30 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 96.9α = 90
b = 110.32β = 91.19
c = 198.54γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-02-08
    Type: Initial release
  • Version 1.1: 2017-03-22
    Changes: Database references