X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6
Temperature 277.0
Details 16-18% MPEG5000, 25-40 mM MES buffer, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 47.78 α = 90
b = 57.33 β = 90
c = 109.41 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 2002-05-05
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-1 0.954 SSRL BL9-1

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
1.71 20 99.2 0.099 -- -- 9.0 32923 32923 0.0 -3.0 21.8
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1.71 1.77 98.4 0.00991 -- 2.5 9.0 3215

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 1.71 20.0 0.0 0.0 33791 31528 1347 93.3 -- -- 0.2055 0.2296 Random
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model anisotropic
Mean Isotropic B 54.7325
Anisotropic B[1][1] 1.34
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.027
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -2.368
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.79
c_dihedral_angle_d 20.9
c_angle_d 1.2
c_bond_d 0.005
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.2
Luzzati Sigma A (Observed) 0.18
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.23
Luzzati Sigma A (R-Free Set) 0.15
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2345
Nucleic Acid Atoms 0
Heterogen Atoms 18
Solvent Atoms 242

Software

Computing
Computing Package Purpose
HKL-2000 Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
EPMR Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
EPMR model building
SCALEPACK data reduction
HKL-2000 data collection