Crystal Structure of a Mycobacterial Protein

Experimental Data Snapshot

  • Resolution: 1.80 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Crystal structure of a UDP-glucose-specific glycosyltransferase from a Mycobacterium species.

Fulton, Z.McAlister, A.Wilce, M.C.Brammananth, R.Zaker-Tabrizi, L.Perugini, M.A.Bottomley, S.P.Coppel, R.L.Crellin, P.K.Rossjohn, J.Beddoe, T.

(2008) J Biol Chem 283: 27881-27890

  • DOI: https://doi.org/10.1074/jbc.M801853200
  • Primary Citation of Related Structures:  
    3CKJ, 3CKN, 3CKO, 3CKQ, 3CKV

  • PubMed Abstract: 

    Glycosyltransferases (GTs) are a large and ubiquitous family of enzymes that specifically transfer sugar moieties to a range of substrates. Mycobacterium tuberculosis contains a large number of GTs, many of which are implicated in cell wall synthesis, yet the majority of these GTs remain poorly characterized. Here, we report the high resolution crystal structures of an essential GT (MAP2569c) from Mycobacterium avium subsp. paratuberculosis (a close homologue of Rv1208 from M. tuberculosis) in its apo- and ligand-bound forms. The structure adopted the GT-A fold and possessed the characteristic DXD motif that coordinated an Mn(2+) ion. Atypical of most GTs characterized to date, MAP2569c exhibited specificity toward the donor substrate, UDP-glucose. The structure of this ligated complex revealed an induced fit binding mechanism and provided a basis for this unique specificity. Collectively, the structural features suggested that MAP2569c may adopt a "retaining" enzymatic mechanism, which has implications for the classification of other GTs in this large superfamily.

  • Organizational Affiliation

    Protein Crystallography Unit, Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, Victoria 3800; Australian Research Council Centre of Excellence in Structural and Functional Microbial Genomics, Monash University, Clayton, Victoria 3800.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Putative uncharacterized protein329N/AMutation(s): 0 
Find proteins for Q73WU1 (Mycolicibacterium paratuberculosis (strain ATCC BAA-968 / K-10))
Explore Q73WU1 
Go to UniProtKB:  Q73WU1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ73WU1
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.80 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.190 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.6α = 90
b = 86.6β = 90
c = 104.3γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-07-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2017-10-25
    Changes: Refinement description
  • Version 1.3: 2024-02-21
    Changes: Data collection, Database references, Derived calculations