1VC4

Crystal Structure of Indole-3-Glycerol Phosphate Synthase (TrpC) from Thermus Thermophilus At 1.8 A Resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.186 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of indole-3-glycerol phosphate synthase from Thermus thermophilus HB8: implications for thermal stability.

Bagautdinov, B.Yutani, K.

(2011) Acta Crystallogr D Biol Crystallogr 67: 1054-1064

  • DOI: 10.1107/S0907444911045264
  • Primary Citation of Related Structures:  
    1VC4

  • PubMed Abstract: 
  • The three-dimensional structure of indole-3-glycerol phosphate synthase (IGPS) from the thermophilic bacterium Thermus thermophilus HB8 (TtIGPS) has been determined at 1.8 Å resolution. The structure adopts a typical (β/α)(8)-barrel fold with an additional N-terminal extension of 46 residues ...

    The three-dimensional structure of indole-3-glycerol phosphate synthase (IGPS) from the thermophilic bacterium Thermus thermophilus HB8 (TtIGPS) has been determined at 1.8 Å resolution. The structure adopts a typical (β/α)(8)-barrel fold with an additional N-terminal extension of 46 residues. A detailed comparison of the crystal structure of TtIGPS with available structures of IGPS from the archaeon Sulfolobus solfataricus (SsIGPS) and the bacteria Thermotoga maritima (TmIGPS) and Escherichia coli (EcIGPS) has been performed. Although the overall folds of the proteins are the same, there are differences in amino-acid composition, structural rigidity, ionic features and stability clusters which may account for the high thermostability of the hyperthermophilic (SsIGPS and TmIGPS) and thermophilic (TtIGPS) proteins when compared with the mesophilic EcIGPS. The thermostability of IGPS seems to be established mainly by favourable interactions of charged residues, salt bridges and the spatial distribution of relatively rigid clusters of extensively interacting residues.


    Organizational Affiliation

    Japan Synchrotron Radiation Research Institute (JASRI/SPring-8), 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan. bagautdi@spring8.or.jp



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Indole-3-Glycerol Phosphate Synthase AB254Thermus thermophilusMutation(s): 0 
Gene Names: TrpCtthHB8IM
EC: 4.1.1.48
Find proteins for P84126 (Thermus thermophilus)
Explore P84126 
Go to UniProtKB:  P84126
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.186 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.652α = 90
b = 78.193β = 90
c = 91.523γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
MOLREPphasing
CNSrefinement
HKL-2000data reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-03-23
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2014-10-29
    Changes: Database references