1BHW

LOW TEMPERATURE MIDDLE RESOLUTION STRUCTURE OF XYLOSE ISOMERASE FROM MASC DATA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.10 Å
  • R-Value Free: 0.321 
  • R-Value Work: 0.315 
  • R-Value Observed: 0.315 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Multiwavelength anomalous solvent contrast (MASC): derivation of envelope structure-factor amplitudes and comparison with model values.

Ramin, M.Shepard, W.Fourme, R.Kahn, R.

(1999) Acta Crystallogr D Biol Crystallogr 55: 157-167

  • DOI: 10.1107/S090744499800626X
  • Primary Citation of Related Structures:  
    1BHZ, 1BHY, 1BHW

  • PubMed Abstract: 
  • A previous article [Fourme et al. (1995). J. Synchrotron Rad. 2, 36-48] presented the theoretical foundations of MASC, a new contrast-variation method using multiwavelength anomalous scattering, and reported the first experimental results. New experiments have been conducted both at the ESRF (Grenoble, France) and at LURE-DCI (Orsay, France), using cryocooled crystals of three proteins of known structures and very different molecular weights ...

    A previous article [Fourme et al. (1995). J. Synchrotron Rad. 2, 36-48] presented the theoretical foundations of MASC, a new contrast-variation method using multiwavelength anomalous scattering, and reported the first experimental results. New experiments have been conducted both at the ESRF (Grenoble, France) and at LURE-DCI (Orsay, France), using cryocooled crystals of three proteins of known structures and very different molecular weights. Amplitudes of {GammaT(h)}, the 'normal' structure factors of the anomalously scattering part of the crystal including the solvent zone and the ordered anomalous scattering sites (if any), have been extracted from multiwavelength data. In the very low resolution range (d >/= 20 A), the agreement between experimental {GammaT(h)} and model values calculated from the bulk solvent is all the more satisfactory since the molecular weight of the protein is high. For spacings between 10 and 20 A, the agreement between experimental {GammaT(h)} and model values is also satisfactory if one takes into account ordered anomalous scatterer sites. Such sites have been found in the three cases.


    Related Citations: 
    • Structural Analysis of the 2.8 A Model of Xylose Isomerase from Actinoplanes Missouriensis
      Rey, F., Jenkins, J., Janin, J., Lasters, I., Alard, P., Claessens, M., Matthyssens, G., Wodak, S.
      (1988) Proteins 4: 165

    Organizational Affiliation

    LURE (CNRS, CEA, MENRT), Université Paris-Sud, 91405 Orsay CEDEX, France.ramin@lure.u-psud.fr



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
XYLOSE ISOMERASEABCD393Actinoplanes missouriensisMutation(s): 0 
EC: 5.3.1.5
Find proteins for P12851 (Actinoplanes missouriensis (strain ATCC 14538 / DSM 43046 / CBS 188.64 / JCM 3121 / NCIMB 12654 / NBRC 102363 / 431))
Explore P12851 
Go to UniProtKB:  P12851
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.10 Å
  • R-Value Free: 0.321 
  • R-Value Work: 0.315 
  • R-Value Observed: 0.315 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 141.91α = 90
b = 141.91β = 90
c = 227.48γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
MOSFLMdata reduction
CCP4data scaling
SCALAdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-11-04
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance