6B4X

Schistosoma mansoni (Blood Fluke) Sulfotransferase, F39Y Mutant

• PDB DOI: https://doi.org/10.2210/pdb6B4X/pdb

• Classification: TRANSFERASE
• Organism(s): Schistosoma mansoni
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2017-09-27 Released: 2018-10-10 
• Deposition Author(s): Taylor, A.B.
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.46 Å
• R-Value Free: 0.191 
• R-Value Work: 0.150 
• R-Value Observed: 0.152 

Literature

Why does oxamniquine kill Schistosoma mansoni and not S. haematobium and S. japonicum?

Rugel, A.R., Guzman, M.A., Taylor, A.B., Chevalier, F.D., Tarpley, R.S., McHardy, S.F., Cao, X., Holloway, S.P., Anderson, T.J.C., Hart, P.J., LoVerde, P.T.

(2020) Int J Parasitol 

• DOI: https://doi.org/10.1016/j.ijpddr.2020.04.001

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 30.67 kDa 
• Atom Count: 2,550 
• Modelled Residue Count: 256 
• Deposited Residue Count: 259 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sulfotransferase oxamniquine resistance protein	A	259	Schistosoma mansoni	Mutation(s): 1  Gene Names: SULT-OR, Smp_089320 EC: 2.8.2
UniProt
Find proteins for G4VLE5 (Schistosoma mansoni) Explore G4VLE5  Go to UniProtKB:  G4VLE5

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A3P	B [auth A]	ADENOSINE-3'-5'-DIPHOSPHATE C10 H15 N5 O10 P2 WHTCPDAXWFLDIH-KQYNXXCUSA-N
TRS	D [auth A]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O
NA	C [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CAS	A	L-PEPTIDE LINKING	C5 H12 As N O2 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.46 Å
• R-Value Free: 0.191 
• R-Value Work: 0.150 
• R-Value Observed: 0.152 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 139.726	α = 90
b = 39.514	β = 90
c = 53.784	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2018-10-10 
Deposition Author(s): Taylor, A.B.

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01AI115691

Revision History  

• Version 1.0: 2018-10-10
  Type: Initial release
  
• Version 1.1: 2019-12-11
  Changes: Author supporting evidence, Structure summary
• Version 1.2: 2020-04-22
  Changes: Database references
• Version 1.3: 2023-10-04
  Changes: Data collection, Database references, Derived calculations, Refinement description