2FH6

Crystal Structure Analysis of Klebsiella pneumoniae pullulanase complexed with glucose


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP629315-25% polyethyleneglycol 6000 in 0.2M magnesium acetate, 0.2M sodium acetate buffer, The crystal was soaked with 300mM glucose for 30 min at 20 deg.C, followed by flash-freezing in a nitrogen gas stream at 100K without any cryo-protectant., pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.3848.37

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 149.263α = 90
b = 60.42β = 111.98
c = 133.65γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH2001-09-28MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSPRING-8 BEAMLINE BL41XU0.71SPring-8BL41XU

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.595083.10.0729.43.1914857612346716.4
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.591.6557.30.2945.92.78458

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMIRTHROUGHOUT1.814.9690543905688.40.1850.1850.212RANDOM22
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
-3.44.5-1.885.28
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.5
c_scangle_it2.42
c_scbond_it1.75
c_mcangle_it1.63
c_angle_deg1.3
c_mcbond_it1.12
c_improper_angle_d0.74
c_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7107
Nucleic Acid Atoms
Solvent Atoms945
Heterogen Atoms16

Software

Software
Software NamePurpose
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASESphasing