3GDG

Crystal structure of the NADP-dependent mannitol dehydrogenase from Cladosporium herbarum.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the NADP-dependent mannitol dehydrogenase from Cladosporium herbarum: Implications for oligomerisation and catalysis.

Nuss, D.Goettig, P.Magler, I.Denk, U.Breitenbach, M.Schneider, P.B.Brandstetter, H.Simon-Nobbe, B.

(2010) Biochimie 92: 985-993

  • DOI: 10.1016/j.biochi.2010.04.012
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The ascomycete Cladosporium herbarum is a prominent fungal inducer of Type I allergy. The only major allergen identified so far is Cla h 8, a NADP-dependent mannitol dehydrogenase (MtDH). MtDH, a cytoplasmic protein of 28.5kDa, belongs to the Short c ...

    The ascomycete Cladosporium herbarum is a prominent fungal inducer of Type I allergy. The only major allergen identified so far is Cla h 8, a NADP-dependent mannitol dehydrogenase (MtDH). MtDH, a cytoplasmic protein of 28.5kDa, belongs to the Short chain Dehydrogenases/Reductases (SDR), acting as a NADP-dependent oxidoreductase. In this study, we found that C. herbarum MtDH can exist as monomers, dimers and tetramers in solution and, correspondingly, forms tetramers and higher oligomers in two crystal structures. Additionally, we identified a unique adaptive binding site for the metal ions Na(+) and Zn(2+) that were distinguished by an anomalous dispersion experiment. A Translation-Libration-Screw analysis confirmed the stabilising effect of Zn(2+) for the tetrameric assembly. Moreover, the zinc containing structure explains the mode of MtDH multimerisation by metal bridging of the tetramers. The formation of oligomers and higher multimers of MtDH provides a missing link to its allergenic properties. Based on the well defined active site region and a comparative analysis with related structures, we can also clarify the atypical enzymatic properties of MtDH by two alternative binding modes of the substrate to the active site.


    Organizational Affiliation

    Division of Structural Biology, Department of Molecular Biology, University of Salzburg, Salzburg, Austria. Dorota.Nuess@sbg.ac.at




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Probable NADP-dependent mannitol dehydrogenase
A, B, C, D
267Davidiella tassianaMutation(s): 0 
EC: 1.1.1.138
Find proteins for P0C0Y5 (Davidiella tassiana)
Go to UniProtKB:  P0C0Y5
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A, B
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.228 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 82.707α = 90.00
b = 112.089β = 98.28
c = 107.292γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
MOSFLMdata reduction
CNSphasing
CNSrefinement
MAR345dtbdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-06-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2011-11-16
    Type: Atomic model