3LLM

Crystal Structure Analysis of a RNA Helicase


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.52770.08 M Sodium cacodylate, 0.16 M Calcium acetate hydrate, 14.4 % PEG 8000, 20 % glycerol, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
4.9475.09

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 113.7α = 90
b = 113.7β = 90
c = 141.65γ = 120
Symmetry
Space GroupP 32 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152009-10-23MMAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I030.98000, 0.98020, 0.96860DiamondI03

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
12.898.511000.09914.110.82662826628
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)
2.82.951000.011.0410.711.13834

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 DIFFRACTIONMADTHROUGHOUT2.898.5126598134399.950.2120.2110.238RANDOM65.358
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]
0.820.410.82-1.23
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg38.263
r_dihedral_angle_4_deg19.733
r_dihedral_angle_3_deg16.387
r_dihedral_angle_1_deg5.611
r_scangle_it3.428
r_scbond_it2.033
r_angle_refined_deg1.457
r_mcangle_it1.326
r_angle_other_deg0.884
r_mcbond_it0.659
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg38.263
r_dihedral_angle_4_deg19.733
r_dihedral_angle_3_deg16.387
r_dihedral_angle_1_deg5.611
r_scangle_it3.428
r_scbond_it2.033
r_angle_refined_deg1.457
r_mcangle_it1.326
r_angle_other_deg0.884
r_mcbond_it0.659
r_mcbond_other0.113
r_chiral_restr0.073
r_bond_refined_d0.015
r_gen_planes_refined0.006
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3679
Nucleic Acid Atoms
Solvent Atoms27
Heterogen Atoms67

Software

Software
Software NamePurpose
SCALAdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
GDAdata collection
MOSFLMdata reduction
SHARPphasing