4MUA

Schistosoma mansoni (Blood Fluke) Sulfotransferase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.182 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Genetic and molecular basis of drug resistance and species-specific drug action in schistosome parasites.

Valentim, C.L.Cioli, D.Chevalier, F.D.Cao, X.Taylor, A.B.Holloway, S.P.Pica-Mattoccia, L.Guidi, A.Basso, A.Tsai, I.J.Berriman, M.Carvalho-Queiroz, C.Almeida, M.Aguilar, H.Frantz, D.E.Hart, P.J.LoVerde, P.T.Anderson, T.J.

(2013) Science 342: 1385-1389

  • DOI: https://doi.org/10.1126/science.1243106
  • Primary Citation of Related Structures:  
    4MUA, 4MUB

  • PubMed Abstract: 

    Oxamniquine resistance evolved in the human blood fluke (Schistosoma mansoni) in Brazil in the 1970s. We crossed parental parasites differing ~500-fold in drug response, determined drug sensitivity and marker segregation in clonally derived second-generation progeny, and identified a single quantitative trait locus (logarithm of odds = 31) on chromosome 6. A sulfotransferase was identified as the causative gene by using RNA interference knockdown and biochemical complementation assays, and we subsequently demonstrated independent origins of loss-of-function mutations in field-derived and laboratory-selected resistant parasites. These results demonstrate the utility of linkage mapping in a human helminth parasite, while crystallographic analyses of protein-drug interactions illuminate the mode of drug action and provide a framework for rational design of oxamniquine derivatives that kill both S. mansoni and S. haematobium, the two species responsible for >99% of schistosomiasis cases worldwide.


  • Organizational Affiliation

    Departments of Biochemistry and Pathology, University of Texas Health Science Center, San Antonio, TX 78229, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Sulfotransferase259Schistosoma mansoniMutation(s): 0 
Gene Names: Smp_089320
UniProt
Find proteins for G4VLE5 (Schistosoma mansoni)
Explore G4VLE5 
Go to UniProtKB:  G4VLE5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG4VLE5
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.182 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 139.58α = 90
b = 39.581β = 90
c = 53.643γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
SHARPphasing
PHENIXrefinement
XDSdata reduction
XDSdata scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2013-12-18
    Type: Initial release
  • Version 1.1: 2014-01-15
    Changes: Database references
  • Version 1.2: 2024-02-28
    Changes: Data collection, Database references, Derived calculations