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 

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

  • Primary Citation of Related Structures:  
  • Also Cited By: 1H5Y

  • 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 an ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
N/A
A, B
241Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099)Mutation(s): 0 
Gene Names: hisA
EC: 5.3.1.16
Find proteins for Q9X0C7 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Go to UniProtKB:  Q9X0C7
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-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 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 46.780α = 90.00
b = 73.160β = 97.42
c = 62.700γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
SOLVEphasing
SCALEPACKdata scaling
DENZOdata reduction
SHARPphasing
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-07-12
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2019-05-22
    Type: Data collection, Derived calculations, Other, Refinement description
  • Version 1.4: 2019-07-24
    Type: Data collection