3MGC

Teg12 Apo


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.91 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.220 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Crystal structures of the glycopeptide sulfotransferase Teg12 in a complex with the teicoplanin aglycone.

Bick, M.J.Banik, J.J.Darst, S.A.Brady, S.F.

(2010) Biochemistry 49: 4159-4168

  • DOI: https://doi.org/10.1021/bi100150v
  • Primary Citation of Related Structures:  
    3MG9, 3MGB, 3MGC

  • PubMed Abstract: 

    The TEG gene cluster, a glycopeptide biosynthetic gene cluster that is predicted to encode the biosynthesis of a polysulfated glycopeptide congener, was recently cloned from DNA extracted directly from desert soil. This predicted glycopeptide gene cluster contains three closely related sulfotransferases (Teg12, -13, and -14) that sulfate teicoplanin-like glycopeptides at three unique sites. Here we report a series of structures: an apo structure of Teg12, Teg12 bound to the desulfated cosubstrate 3'-phosphoadenosine 5'-phosphate, and Teg12 bound to the teicoplanin aglycone. Teg12 appears to undergo a series of significant conformational rearrangements during glycopeptide recruitment, binding, and catalysis. Loop regions that exhibit the most conformational flexibility show the least sequence conservation between TEG sulfotransferases. Site-directed mutagenesis guided by our structural studies confirmed the importance of key catalytic residues as well as the importance of residues found throughout the conformationally flexible loop regions.


  • Organizational Affiliation

    Howard Hughes Medical Institute, Laboratory of Genetically Encoded Small Molecules, Laboratory of Molecular Biophysics, The Rockefeller University, 1230 York Avenue, New York, New York 10065, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Teg12
A, B
319uncultured soil bacteriumMutation(s): 0 
Gene Names: teg1teg12
EC: 2.8.2
UniProt
Find proteins for B7T1D7 (uncultured soil bacterium)
Explore B7T1D7 
Go to UniProtKB:  B7T1D7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB7T1D7
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.91 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.220 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.388α = 90
b = 126.086β = 90
c = 145.133γ = 90
Software Package:
Software NamePurpose
CBASSdata collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-06-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2023-09-06
    Changes: Data collection, Database references, Derived calculations, Refinement description