2XGJ

Structure of Mtr4, a DExH helicase involved in nuclear RNA processing and surveillance


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16PROTEIN WAS CRYSTALLISED IN 50 MM MES PH 6.0, 200 MM AMMONIUM ACETATE, 20 % (W/V) PEG3350. 15% ETHYLENE GLYCOL WAS USED AS A CRYOPROTECTANT.
Crystal Properties
Matthews coefficientSolvent content
3.264

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 100.11α = 90
b = 126.019β = 99.21
c = 102.272γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298PIXELDECTRIS PILATUS 6MDYNAMICALLY BENDABLE MIRROR, MERIDIONAL - VERTICAL2009-11-30MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSLS BEAMLINE X10SASLSX10SA

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
12.953.499.70.1111.35.555417253.84
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)
12.93.061000.543.95.4

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTIN HOUSE SE-MET MAD STRUCTURE2.953.4531.3555391280699.540.2030.20050.247451.2
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]
-0.20912.2882.5094-2.3003
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d15.704
f_angle_d0.623
f_chiral_restr0.041
f_bond_d0.002
f_plane_restr0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms13537
Nucleic Acid Atoms217
Solvent Atoms81
Heterogen Atoms54

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
SCALAdata scaling