5CLS

Structure of human methionine aminopeptidase-2 complexed with spiroepoxytriazole inhibitor (+)-31a


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.160 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Spiroepoxytriazoles Are Fumagillin-like Irreversible Inhibitors of MetAP2 with Potent Cellular Activity.

Morgen, M.Jost, C.Malz, M.Janowski, R.Niessing, D.Klein, C.D.Gunkel, N.Miller, A.K.

(2016) Acs Chem.Biol. 11: 1001-1011

  • DOI: 10.1021/acschembio.5b00755
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Methionine aminopeptidases (MetAPs) are responsible for the cotranslational cleavage of initiator methionines from nascent proteins. The MetAP2 subtype is up-regulated in many cancers, and selective inhibition of MetAP2 suppresses both vascularizatio ...

    Methionine aminopeptidases (MetAPs) are responsible for the cotranslational cleavage of initiator methionines from nascent proteins. The MetAP2 subtype is up-regulated in many cancers, and selective inhibition of MetAP2 suppresses both vascularization and growth of tumors in animal models. The natural product fumagillin is a selective and potent irreversible inhibitor of MetAP2, and semisynthetic derivatives of fumagillin have shown promise in clinical studies for the treatment of cancer, and, more recently, for obesity. Further development of fumagillin derivatives has been complicated, however, by their generally poor pharmacokinetics. In an attempt to overcome these limitations, we developed an easily diversifiable synthesis of a novel class of MetAP2 inhibitors that were designed to mimic fumagillin's molecular scaffold but have improved pharmacological profiles. These substances were found to be potent and selective inhibitors of MetAP2, as demonstrated in biochemical enzymatic assays against three MetAP isoforms. Inhibitors with the same relative and absolute stereoconfiguration as fumagillin displayed significantly higher activity than their diastereomeric and enantiomeric isomers. X-ray crystallographic analysis revealed that the inhibitors covalently modify His231 in the MetAP2 active site via ring-opening of a spiroepoxide. Biochemically active substances inhibited the growth of endothelial cells and a MetAP2-sensitive cancer cell line, while closely related inactive isomers had little effect on the proliferation of either cell type. These effects correlated with altered N-terminal processing of the protein 14-3-3-γ. Finally, selected substances were found to have improved stabilities in mouse plasma and microsomes relative to the clinically investigated fumagillin derivative beloranib.


    Organizational Affiliation

    Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology (IPMB), Heidelberg University , Im Neuenheimer Feld 364, D-69120 Heidelberg, Germany.,Cancer Drug Development Group, German Cancer Research Center (DKFZ) , Im Neunheimer Feld 280, D-69120 Heidelberg, Germany.,Biomedical Center of the Ludwig-Maximilians-Universität München , D-82152 Planegg-Martinsried, Germany.,Institute of Structural Biology, Helmholtz Zentrum München, German Research Center for Environmental Health (HMGU) , D-85764 Neuherberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Methionine aminopeptidase 2
A
371Homo sapiensMutation(s): 0 
Gene Names: METAP2 (MNPEP, P67EIF2)
EC: 3.4.11.18
Find proteins for P50579 (Homo sapiens)
Go to Gene View: METAP2
Go to UniProtKB:  P50579
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CIT
Query on CIT

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A
CITRIC ACID
C6 H8 O7
KRKNYBCHXYNGOX-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

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A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
DMS
Query on DMS

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A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
52T
Query on 52T

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A
(4R,7R)-7-hydroxy-1-(4-methoxybenzyl)-7-methyl-4,5,6,7-tetrahydro-1H-benzotriazol-4-yl propan-2-ylcarbamate
C19 H26 N4 O4
CDAJJINZTVFCPA-DNVCBOLYSA-N
 Ligand Interaction
CO
Query on CO

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A
COBALT (II) ION
Co
XLJKHNWPARRRJB-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.160 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 89.620α = 90.00
b = 101.180β = 90.00
c = 100.280γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
REFMACrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-01-13
    Type: Initial release
  • Version 1.1: 2016-01-27
    Type: Database references
  • Version 1.2: 2016-04-27
    Type: Database references