X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 273.0
Details Tris HCl pH 8.5, 0.2 M calcium chloride, PEG 4000, PEG 400, VAPOR DIFFUSION, HANGING DROP, temperature 273K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.94 α = 90
b = 70.43 β = 90
c = 148.86 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
CCD SBC-2 -- 2000-08-22
Diffraction Radiation
Monochromator Protocol
Double-crystal SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 19-ID 0.97933 APS 19-ID

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
2.27 60 -- 0.064 -- -- 3.9 -- 29401 0.0 -3.0 --
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)
2.27 2.31 95.4 0.222 -- 5.3 3.8 --

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 2.3 10.0 -- 0.0 28994 28994 1131 95.2 -- 0.1702 0.1702 0.23248 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Isotropic
Mean Isotropic B 15.186
Anisotropic B[1][1] 3.55
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.21
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -3.35
RMS Deviations
Key Refinement Restraint Deviation
p_bond_d 0.013
p_angle_d 0.024
p_mcbond_it 0.616
p_mcangle_it 1.114
p_scbond_it 1.851
p_scangle_it 3.189
p_plane_restr 0.004
p_chiral_restr 0.082
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4258
Nucleic Acid Atoms 0
Heterogen Atoms 9
Solvent Atoms 234

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
EPMR Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
EPMR model building
SCALEPACK data reduction
DENZO data collection