4R0D

Crystal structure of a eukaryotic group II intron lariat


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP5.63030.4 mM spermine, 21% 2-Methyl-2,4-pentanediol, 175 mM magnesium acetate tetrahydrate, and 90 mM MES monohydrate, pH 5.6, VAPOR DIFFUSION, SITTING DROP, temperature 303K
Crystal Properties
Matthews coefficientSolvent content
3.4464.27

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 163.639α = 90
b = 255.361β = 90
c = 136.786γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2013-07-12MMAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 24-ID-C1.1052, 1.3854, 1.3858APS24-ID-C

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
13.67681.8299.90.1496.46.83120731107
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
13.683.7499.90.63.8

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (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 DIFFRACTIONMAD3.67681.821.3331107199498.530.24110.23860.2739
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d19.463
f_angle_d1.483
f_chiral_restr0.099
f_bond_d0.017
f_plane_restr0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms13472
Solvent Atoms115
Heterogen Atoms393

Software

Software
Software NamePurpose
HKL-2000data collection
SHELXmodel building
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
SHELXphasing