1QO2

Crystal structure of N-((5'-phosphoribosyl)-formimino)-5-aminoimidazol-4-carboxamid ribonucleotid isomerase (EC 3.1.3.15, HisA)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural Evidence for Evolution of the Beta/Alpha-Barrel Scaffold by Repeated Gene Duplication and Fusion

Lang, D.Thoma, R.Henn-Sax, M.Sterner, R.Wilmanns, M.

(2000) Science 289: 1546

  • DOI: 10.1126/science.289.5484.1546
  • Primary Citation of Related Structures:  
    1QO2, 1THF

  • PubMed Abstract: 
  • The atomic structures of two proteins in the histidine biosynthesis pathway consist of beta/alpha barrels with a twofold repeat pattern. It is likely that these proteins evolved by twofold gene duplication and gene fusion from a common half-barrel ancestor ...

    The atomic structures of two proteins in the histidine biosynthesis pathway consist of beta/alpha barrels with a twofold repeat pattern. It is likely that these proteins evolved by twofold gene duplication and gene fusion from a common half-barrel ancestor. These ancestral domains are not visible as independent domains in the extant proteins but can be inferred from a combination of sequence and structural analysis. The detection of subdomain structures may be useful in efforts to search genome sequences for functionally and structurally related proteins.


    Related Citations: 
    • Efficient Expression, Purification and Crystallisation of Two Hyperthermostable Enzymes of Histidine Biosynthesis
      Thoma, R., Obmolova, G., Lang, D.A., Schwander, M., Jenoe, P., Sterner, R., Wilmanns, M.
      (1999) FEBS Lett 454: 1

    Organizational Affiliation

    European Molecular Biology Laboratory (EMBL) Hamburg Outstation, EMBL c/o Deutsches Elektronen- Synchrotron (DESY), Notkestrasse 85, D-22603 Hamburg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
N/AA, B241Thermotoga maritimaMutation(s): 0 
Gene Names: THISA
EC: 5.3.1.15 (PDB Primary Data), 5.3.1.16 (UniProt)
Find proteins for Q9X0C7 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Explore Q9X0C7 
Go to UniProtKB:  Q9X0C7
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, BL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.188 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.78α = 90
b = 73.16β = 97.42
c = 62.7γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing
SHARPphasing
SOLVEphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-07-12
    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: 2019-07-24
    Changes: Data collection