2BB7

Mn Form Of E. coli Methionine Aminopeptidase In Complex With a quinolinyl sulfonamide inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Metal mediated inhibition of methionine aminopeptidase by quinolinyl sulfonamides

Huang, M.Xie, S.X.Ma, Z.Q.Hanzlik, R.P.Ye, Q.Z.

(2006) Biochem.Biophys.Res.Commun. 339: 506-513

  • DOI: 10.1016/j.bbrc.2005.11.042

  • PubMed Abstract: 
  • Quinolinyl sulfonamides, such as N-(quinolin-8-yl)methanesulfonamide (10) and N-(5-chloroquinolin-8-yl)methanesulfonamide (11), were identified as potent methionine aminopeptidase (MetAP) inhibitors by high throughput screening of a diverse chemical ...

    Quinolinyl sulfonamides, such as N-(quinolin-8-yl)methanesulfonamide (10) and N-(5-chloroquinolin-8-yl)methanesulfonamide (11), were identified as potent methionine aminopeptidase (MetAP) inhibitors by high throughput screening of a diverse chemical library of small organic compounds. They showed different inhibitory potencies on Co(II)-, Ni(II)-, Fe(II)-, Mn(II)-, and Zn(II)-forms of Escherichia coli MetAP, and their inhibition is dependent on metal concentration. X-ray structures of E. coli MetAP complexed with 10 revealed that the inhibitor forms a metal complex with the residue H79 at the enzyme active site; the complex is further stabilized by an extended H-bond and metal interaction network. Analysis of the inhibition of MetAP by these inhibitors indicates that this is a typical mechanism of inhibition for many non-peptidic MetAP inhibitors and emphasizes the importance of defining in vitro conditions for identifying and evaluating MetAP inhibitors that will be capable of giving information relevant to the in vivo situation.


    Organizational Affiliation

    High Throughput Screening Laboratory, University of Kansas, Lawrence, KS 66045, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Methionine aminopeptidase
A
264Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: map
EC: 3.4.11.18
Find proteins for P0AE18 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AE18
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

Download SDF File 
Download CCD File 
A
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
QMS
Query on QMS

Download SDF File 
Download CCD File 
A
N-(QUINOLIN-8-YL)METHANESULFONAMIDE
C10 H10 N2 O2 S
XYEPUTZVZYUENX-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
QMSIC50: 2140 nM BINDINGMOAD
QMSIC50: 2140 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.187 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 38.039α = 90.00
b = 60.416β = 104.40
c = 50.521γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
PDB_EXTRACTdata extraction
MOSFLMdata reduction
CCP4data scaling
MOLREPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2005-10-17 
  • Released Date: 2006-01-24 
  • Deposition Author(s): Ye, Q.Z.

Revision History 

  • Version 1.0: 2006-01-24
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance