X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP291RESERVOIR SOLUTION: 20% PEG 3350, 20MM MAGNESIUM FORMATE, PROTEIN SOLUTION 20MM TRIS PH 7.5, 150 MM NACL, 1MM TCEP FORMATION METHOD: SOAKING PROTOCOL: Low affinity compound WAS INCUBATED WITH THE PROTEIN AT 2MM FINAL CONCENTRATION BEFORE SETUP. EQUAL VOLUMES OF PROTEIN AND CRYSTALLANT WERE ADDED TO COVER-SLIP. CRYSTAL APPEAR AFTER SEVEAL DAYS. EXCHANGE SOAKING WAS PERFORMED USING 2MM COMPOUND AT LEAST OVERNIGHT. METHOD: VAPOR DIFFUSION - HANGING DROP TEMPERATURE: 291.0 CRYO PROTOCOL: MOTHER LIQUOR (200MM AMMONIUM SULFATE; 30% PEG MME 5K) + 20% GLYCEROL
Crystal Properties
Matthews coefficientSolvent content
2.2645.58

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 43.81α = 90
b = 71.266β = 90
c = 120.069γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2012-05-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.21.0ALS5.0.2

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
11.855099.90.07820.45.93264925.14
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)
11.851.9298.80.7072.085.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1QNZC1.8524.4532563165099.010.1730.17120.2064RANDOM30.08
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]
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2679
Nucleic Acid Atoms
Solvent Atoms394
Heterogen Atoms22

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing
BUSTERrefinement