Crystal structure of ribose-5-phosphate isomerase B RpiB from Coccidioides immitis semi-covalently bound to malonic acid

Experimental Data Snapshot

  • Resolution: 1.70 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.142 
  • R-Value Observed: 0.144 

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This is version 1.4 of the entry. See complete history


Structural characterization of a ribose-5-phosphate isomerase B from the pathogenic fungus Coccidioides immitis.

Edwards, T.E.Abramov, A.B.Smith, E.R.Baydo, R.O.Leonard, J.T.Leibly, D.J.Thompkins, K.B.Clifton, M.C.Gardberg, A.S.Staker, B.L.Van Voorhis, W.C.Myler, P.J.Stewart, L.J.

(2011) BMC Struct Biol 11: 39-39

  • DOI: https://doi.org/10.1186/1472-6807-11-39
  • Primary Citation of Related Structures:  
    3QD5, 3SDW, 3SGW

  • PubMed Abstract: 

    Ribose-5-phosphate isomerase is an enzyme that catalyzes the interconversion of ribose-5-phosphate and ribulose-5-phosphate. This family of enzymes naturally occurs in two distinct classes, RpiA and RpiB, which play an important role in the pentose phosphate pathway and nucleotide and co-factor biogenesis.

  • Organizational Affiliation

    Seattle Structural Genomics Center for Infectious Disease (SSGCID), USA. tedwards@embios.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ribose 5-phosphate isomerase184Coccidioides immitis RSMutation(s): 0 
Gene Names: CIMG_07932
EC: 5.3.1
Find proteins for P0CL19 (Coccidioides immitis (strain RS))
Explore P0CL19 
Go to UniProtKB:  P0CL19
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0CL19
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.46α = 90
b = 84.42β = 90
c = 96.17γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PDB_EXTRACTdata extraction
StructureStudiodata collection
XDSdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-06-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2011-10-26
    Changes: Database references
  • Version 1.3: 2015-04-29
    Changes: Non-polymer description
  • Version 1.4: 2023-09-13
    Changes: Data collection, Database references, Derived calculations, Refinement description