X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.5298Protein Solution: 0.16 mM protein, 0.5 M KCl, 50 mM Tris Cl (pH 7.5), 1 mM DTT, 10% glycerol, 1 mM IMP Well Solution: 2.2 M ammonium sulfate, PEG 550 MME, 0.1 M Tris Cl (pH 7.5), 10% glycerol, 0.01 mM beta-mercaptoethanol IMP does not bind in crystal due to excess ammonium sulfate. Crystallization is reproducible in the absence of IMP. , VAPOR DIFFUSION, HANGING DROP, temperature 25K
Crystal Properties
Matthews coefficientSolvent content
2.8256.37

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 123.28α = 90
b = 123.28β = 90
c = 130.11γ = 90
Symmetry
Space GroupI 4

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray93IMAGE PLATEMARRESEARCH1997-05-11MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X12BNSLSX12B

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
12.210099.60.131146.82551263682027.5
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)
12.42.595.80.3433.43620

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONTHROUGHOUT2.483682036820373299.60.2140.2140.262RANDOM35.2
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]
-4.84-4.849.68
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.5
c_angle_deg1.4
c_improper_angle_d0.82
c_bond_d0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4564
Nucleic Acid Atoms
Solvent Atoms107
Heterogen Atoms10

Software

Software
Software NamePurpose
AMoREphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling