5GKK

Crystal structure of a homing endonuclease, I-TnaI


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.2294100 mM Hepes, 35% Jeffamine ED-2001
Crystal Properties
Matthews coefficientSolvent content
1.8935.04

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 32.203α = 90
b = 113.886β = 110.41
c = 44.922γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2011-09-25MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRF BEAMLINE BL17U1.54175SSRFBL17U

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
125096.50.08616.46.21969937.3
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)
122.07960.7194.36.7

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1BP72.00139.491.371966799596.160.20710.20470.2479Random46.5213
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]
-2.7089-3.343910.0693-7.3604
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d17.438
f_angle_d1.275
f_chiral_restr0.096
f_bond_d0.01
f_plane_restr0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2450
Nucleic Acid Atoms
Solvent Atoms31
Heterogen Atoms

Software

Software
Software NamePurpose
HKL-2000data collection
HKL-2000data processing
HKL-2000data scaling
PHASERphasing
PHENIXrefinement