2NQ6

Crystal structure of human methionine aminopeptidase type 1 in complex with 3-tert-Butoxycarbonylaminopyridine-2-carboxylic acid thiazole-2-ylamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.173 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Elucidation of the function of type 1 human methionine aminopeptidase during cell cycle progression.

Hu, X.Addlagatta, A.Lu, J.Matthews, B.W.Liu, J.O.

(2006) Proc.Natl.Acad.Sci.Usa 103: 18148-18153

  • DOI: 10.1073/pnas.0608389103
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Processing of the N-terminal initiator methionine is an essential cellular process conserved from prokaryotes to eukaryotes. The enzymes that remove N-terminal methionine are known as methionine aminopeptidases (MetAPs). Human MetAP2 has been shown t ...

    Processing of the N-terminal initiator methionine is an essential cellular process conserved from prokaryotes to eukaryotes. The enzymes that remove N-terminal methionine are known as methionine aminopeptidases (MetAPs). Human MetAP2 has been shown to be required for the proliferation of endothelial cells and angiogenesis. The physiological function of MetAP1, however, has remained elusive. In this report we demonstrate that a family of inhibitors with a core structure of pyridine-2-carboxylic acid previously developed for the bacterial and yeast MetAP1 is also specific for human MetAP1 (HsMetAP1), as confirmed by both enzymatic assay and high-resolution x-ray crystallography. Treatment of tumor cell lines with the MetAP1-specific inhibitors led to an accumulation of cells in the G(2)/M phase, suggesting that HsMetAP1 may play an important role in G(2)/M phase transition. Overexpression of HsMetAP1, but not HsMetAP2, conferred resistance of cells to the inhibitors, and the inhibitors caused retention of N-terminal methionine of a known MetAP substrate, suggesting that HsMetAP1 is the cellular target for the inhibitors. In addition, when HsMetAP1 was knocked down by gene-specific siRNA, cells exhibited slower progression during G(2)/M phase, a phenotype similar to cells treated with MetAP1 inhibitors. Importantly, MetAP1 inhibitors were able to induce apoptosis of leukemia cell lines, presumably as a consequence of their interference with the G(2)/M phase checkpoint. Together, these results suggest that MetAP1 plays an important role in G(2)/M phase of the cell cycle and that it may serve as a promising target for the discovery and development of new anticancer agents.


    Organizational Affiliation

    Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Methionine aminopeptidase 1
A
329Homo sapiensMutation(s): 0 
Gene Names: METAP1 (KIAA0094)
EC: 3.4.11.18
Find proteins for P53582 (Homo sapiens)
Go to Gene View: METAP1
Go to UniProtKB:  P53582
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

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

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Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
HM4
Query on HM4

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Download CCD File 
A
TERT-BUTYL {2-[(1,3-THIAZOL-2-YLAMINO)CARBONYL]PYRIDIN-3-YL}CARBAMATE
C14 H16 N4 O3 S
QBMYJIFXSXKPFS-UHFFFAOYSA-N
 Ligand Interaction
CO
Query on CO

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.173 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 47.320α = 90.00
b = 77.825β = 90.48
c = 48.229γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
ADSCdata collection
HKL-2000data reduction
CNSrefinement
EPMRphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-11-21
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance