Crystal structure of 3,4-Dihydroxy-2-butanone 4-phosphate Synthase of Candida albicans

Experimental Data Snapshot

  • Resolution: 1.60 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.192 

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This is version 1.3 of the entry. See complete history


Potential anti-infective targets in pathogenic yeasts: structure and properties of 3,4-dihydroxy-2-butanone 4-phosphate synthase of Candida albicans.

Echt, S.Bauer, S.Steinbacher, S.Huber, R.Bacher, A.Fischer, M.

(2004) J Mol Biol 341: 1085-1096

  • DOI: https://doi.org/10.1016/j.jmb.2004.06.053
  • Primary Citation of Related Structures:  
    1TKS, 1TKU

  • PubMed Abstract: 

    A synthetic gene specifying a putative 3,4-dihydroxy-2-butanone 4-phosphate synthase of Candida albicans directed the synthesis of a 22.5 kDa peptide in a recombinant Escherichia coli strain. The recombinant protein was purified to apparent homogeneity by two chromatographic steps and was shown to catalyze the formation of L-3,4-dihydroxy-2-butanone 4-phosphate from ribulose 5-phosphate at a rate of 332 nmol mg(-1) min(-1). Hydrodynamic studies indicated a native molecular mass of 41 kDa in line with a homodimer structure. The protein was crystallized in its apoform. Soaking yielded crystals in complex with the substrate ribulose 5-phosphate. The structures were solved at resolutions of 1.6 and 1.7 angstroms, respectively, using 3,4-dihydroxy-2-butanone 4-phosphate synthase of E. coli for molecular replacement. Structural comparison with the orthologs of Magnaporthe grisea and Methanococcus jannaschii revealed a hitherto unknown conformation of the essential acidic active-site loop.

  • Organizational Affiliation

    Lehrstuhl für Organische Chemie und Biochemie, Technische Universität München, Garching, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
3,4-dihydroxy-2-butanone 4-phosphate synthase
A, B
204Candida albicans SC5314Mutation(s): 0 
Gene Names: CARib3
EC: 5.4.99
Find proteins for Q5A3V6 (Candida albicans (strain SC5314 / ATCC MYA-2876))
Explore Q5A3V6 
Go to UniProtKB:  Q5A3V6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5A3V6
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.60 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.192 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.439α = 66.229
b = 48.134β = 71.979
c = 59.804γ = 89.856
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-09-07
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2023-08-23
    Changes: Data collection, Database references, Refinement description