1U3E

DNA binding and cleavage by the HNH homing endonuclease I-HmuI


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelOtherpdb from SAD phase and DM with solvent flipping

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1Hanging drop vapor diffusion8.75298PEG600, pH 8.75, Hanging drop vapor diffusion, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
3.5360

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 45α = 90
b = 108.3β = 90
c = 248.1γ = 90
Symmetry
Space GroupI 2 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315toroidal focusing mirror2003-12-10MSINGLE WAVELENGTH
21x-ray100CCDADSC QUANTUM 210mirrors2003-12-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.20.9796ALS5.0.2
2SYNCHROTRONALS BEAMLINE 5.0.11.00ALS5.0.1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym 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
1,22.95099.40.06523.34.5134401336021
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1,22.92.96970.4330.4332.44717

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONSADTHROUGHOUTpdb from SAD phase and DM with solvent flipping2.92502113440133602174100.220.220.2160.247random68.65
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]
6.855-14.8297.974
RMS Deviations
KeyRefinement Restraint Deviation
c_angle_deg1.267
c_bond_d0.0066
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1393
Nucleic Acid Atoms1471
Solvent Atoms31
Heterogen Atoms41

Software

Software
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
CNSrefinement
HKL-2000data reduction
CNSphasing