1BHW

LOW TEMPERATURE MIDDLE RESOLUTION STRUCTURE OF XYLOSE ISOMERASE FROM MASC DATA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.1 Å
  • R-Value Free: 0.321 
  • R-Value Work: 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.,Sect.D 55: 157-167

  • DOI: 10.1107/S090744499800626X
  • Primary Citation of Related Structures:  

  • 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 experi ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
XYLOSE ISOMERASE
A, B, C, D
393Actinoplanes missouriensis (strain ATCC 14538 / DSM 43046 / CBS 188.64 / JCM 3121 / NCIMB 12654 / NBRC 102363 / 431)Mutation(s): 0 
Gene Names: xylA (XI)
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))
Go to UniProtKB:  P12851
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.1 Å
  • R-Value Free: 0.321 
  • R-Value Work: 0.315 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 141.910α = 90.00
b = 141.910β = 90.00
c = 227.480γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing
SCALAdata scaling
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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