Experimental Data Snapshot

  • Resolution: 1.75 Å
  • R-Value Free: 0.308 
  • R-Value Observed: 0.239 

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This is version 1.4 of the entry. See complete history


The X-Ray Structure of Yeast 5-Aminolaevulinic Acid Dehydratase Complexed with Two Diacid Inhibitors

Erskine, P.T.Coates, L.Newbold, R.Brindley, A.A.Stauffer, F.Wood, S.P.Warren, M.J.Cooper, J.B.Shoolingin-Jordan, P.M.Neier, R.

(2001) FEBS Lett 503: 196

  • DOI: https://doi.org/10.1016/s0014-5793(01)02721-1
  • Primary Citation of Related Structures:  
    1EB3, 1GJP

  • PubMed Abstract: 

    The structures of 5-aminolaevulinic acid dehydratase complexed with two irreversible inhibitors (4-oxosebacic acid and 4,7-dioxosebacic acid) have been solved at high resolution. Both inhibitors bind by forming a Schiff base link with Lys 263 at the active site. Previous inhibitor binding studies have defined the interactions made by only one of the two substrate moieties (P-side substrate) which bind to the enzyme during catalysis. The structures reported here provide an improved definition of the interactions made by both of the substrate molecules (A- and P-side substrates). The most intriguing result is the novel finding that 4,7-dioxosebacic acid forms a second Schiff base with the enzyme involving Lys 210. It has been known for many years that P-side substrate forms a Schiff base (with Lys 263) but until now there has been no evidence that binding of A-side substrate involves formation of a Schiff base with the enzyme. A catalytic mechanism involving substrate linked to the enzyme through Schiff bases at both the A- and P-sites is proposed.

  • Organizational Affiliation

    Division of Biochemistry and Molecular Biology, School of Biological Sciences, University of Southampton, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
5-AMINOLAEVULINIC ACID DEHYDRATASE340Saccharomyces cerevisiaeMutation(s): 0 
Find proteins for P05373 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P05373 
Go to UniProtKB:  P05373
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP05373
Sequence Annotations
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Resolution: 1.75 Å
  • R-Value Free: 0.308 
  • R-Value Observed: 0.239 
  • Space Group: I 4 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 104.3α = 90
b = 104.3β = 90
c = 167.2γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-08-02
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-05-22
    Changes: Data collection, Derived calculations, Other, Refinement description
  • Version 1.4: 2023-12-13
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description