2FHB

Crystal Structure Analysis of Klebsiella pneumoniae pullulanase complexed with maltose


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 maltose for 30min 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
2.3948.48

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 150.258α = 90
b = 60.601β = 114.429
c = 135.104γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATERIGAKU RAXIS IV2000-05-13MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSPRING-8 BEAMLINE BL24XU0.836SPring-8BL24XU

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
11.75080.10.09111.33.6612291498472116.8
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)
1.71.844.50.2362.81.458565

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 DIFFRACTIONMIRTHROUGHOUT1.814.9689745901087.40.1720.1720.205RANDOM36.7
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]
-2.489.46-5.297.76
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.4
c_scangle_it2.47
c_mcangle_it1.73
c_scbond_it1.73
c_angle_deg1.2
c_mcbond_it1.14
c_improper_angle_d0.72
c_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms8128
Nucleic Acid Atoms
Solvent Atoms1002
Heterogen Atoms51

Software

Software
Software NamePurpose
CNSrefinement
PHASESphasing