1JVW

TRYPANOSOMA CRUZI MACROPHAGE INFECTIVITY POTENTIATOR (TCMIP)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.179 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Trypanosoma cruzi macrophage infectivity potentiator has a rotamase core and a highly exposed alpha-helix.

Pereira, P.J.Vega, M.C.Gonzalez-Rey, E.Fernandez-Carazo, R.Macedo-Ribeiro, S.Gomis-Ruth, F.X.Gonzalez, A.Coll, M.

(2002) EMBO Rep 3: 88-94

  • DOI: 10.1093/embo-reports/kvf009
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The macrophage infectivity potentiator protein from Trypanosoma cruzi (TcMIP) is a major virulence factor secreted by the etiological agent of Chagas' disease. It is functionally involved in host cell invasion. We have determined the three-dimensiona ...

    The macrophage infectivity potentiator protein from Trypanosoma cruzi (TcMIP) is a major virulence factor secreted by the etiological agent of Chagas' disease. It is functionally involved in host cell invasion. We have determined the three-dimensional crystal structure of TcMIP at 1.7 A resolution. The monomeric protein displays a peptidyl-prolyl cis-trans isomerase (PPIase) core, encompassing the characteristic rotamase hydrophobic active site, thus explaining the strong inhibition of TcMIP by the immunosuppressant FK506 and related drugs. In TcMIP, the twisted beta-sheet of the core is extended by an extra beta-strand, preceded by a long, exposed N-terminal alpha-helix, which might be a target recognition element. An invasion assay shows that the MIP protein from Legionella pneumophila (LpMIP), which has an equivalent N-terminal alpha-helix, can substitute for TcMIP. An additional exposed alpha-helix, this one unique to TcMIP, is located in the C-terminus of the protein. The high-resolution structure reported here opens the possibility for the design of new inhibitory drugs that might be useful for the clinical treatment of American trypanosomiasis.


    Organizational Affiliation

    Institut de Biología Molecular-CSIC, Jordi Girona 18-26, E-08034 Barcelona and 1Instituto de Parasitología y Biomedicina-CSIC, Ventanilla 11, E-18001 Granada, Spain.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MACROPHAGE INFECTIVITY POTENTIATOR
A
167Trypanosoma cruziMutation(s): 0 
Gene Names: MIP
EC: 5.2.1.8
Find proteins for Q09734 (Trypanosoma cruzi)
Go to UniProtKB:  Q09734
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.179 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.034α = 90
b = 34.587β = 91.57
c = 50.412γ = 90
Software Package:
Software NamePurpose
AMoREphasing
SHELXL-97refinement
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-06-05
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance