1TEX

Mycobacterium smegmatis Stf0 Sulfotransferase with Trehalose


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Identification, function and structure of the mycobacterial sulfotransferase that initiates sulfolipid-1 biosynthesis.

Mougous, J.D.Petzold, C.J.Senaratne, R.H.Lee, D.H.Akey, D.L.Lin, F.L.Munchel, S.E.Pratt, M.R.Riley, L.W.Leary, J.A.Berger, J.M.Bertozzi, C.R.

(2004) Nat Struct Mol Biol 11: 721-729

  • DOI: 10.1038/nsmb802
  • Primary Citation of Related Structures:  
    1TEX

  • PubMed Abstract: 
  • Sulfolipid-1 (SL-1) is an abundant sulfated glycolipid and potential virulence factor found in Mycobacterium tuberculosis. SL-1 consists of a trehalose-2-sulfate (T2S) disaccharide elaborated with four lipids. We identified and characterized a conserved mycobacterial sulfotransferase, Stf0, which generates the T2S moiety of SL-1 ...

    Sulfolipid-1 (SL-1) is an abundant sulfated glycolipid and potential virulence factor found in Mycobacterium tuberculosis. SL-1 consists of a trehalose-2-sulfate (T2S) disaccharide elaborated with four lipids. We identified and characterized a conserved mycobacterial sulfotransferase, Stf0, which generates the T2S moiety of SL-1. Biochemical studies demonstrated that the enzyme requires unmodified trehalose as substrate and is sensitive to small structural perturbations of the disaccharide. Disruption of stf0 in Mycobacterium smegmatis and M. tuberculosis resulted in the loss of T2S and SL-1 formation, respectively. The structure of Stf0 at a resolution of 2.6 A reveals the molecular basis of trehalose recognition and a unique dimer configuration that encloses the substrate into a bipartite active site. These data provide strong evidence that Stf0 carries out the first committed step in the biosynthesis of SL-1 and establish a system for probing the role of SL-1 in M. tuberculosis infection.


    Organizational Affiliation

    Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Stf0 SulfotransferaseA, B, C, D287Mycolicibacterium smegmatisMutation(s): 0 
Gene Names: stf0ERS451418_00652
EC: 2.8.2
UniProt
Find proteins for P84151 (Mycolicibacterium smegmatis)
Explore P84151 
Go to UniProtKB:  P84151
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP84151
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-glucopyranose-(1-1)-alpha-D-glucopyranoseE, F, G, H 2N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G92130SN
GlyCosmos:  G92130SN
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChainsNameType/Class2D Diagram3D Interactions
PRD_900006
Query on PRD_900006
E, F, G, HtrehaloseOligosaccharide / Nutrient Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.929α = 90
b = 101.929β = 90
c = 228.212γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-07-20
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Refinement description, Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary