X-RAY DIFFRACTION Experimental Data & Validation

X-ray Experimental Help


Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.5
Temperature 277.0
Details PEG400, HEPES, NaBr, CaCl2, acetonitrile, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 137.33 α = 90
b = 137.33 β = 90
c = 197.8 γ = 120
Space Group P 63 2 2


Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD SBC-2 -- 2001-01-31
Diffraction Radiation
Monochromator Protocol
Graphite Double Crystal SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline

Data Collection

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
2.5 50 98.4 0.082 -- -- -- 421780 415031 0.0 0.0 67.0
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)
2.5 2.54 93.0 0.699 -- 1.3 -- --


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
MAD 2.7 30.0 -- 0.0 30300 30300 1155 -- 0.318 0.318 0.319 0.303 random
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model individual isotropic
Mean Isotropic B 67.0
Anisotropic B[1][1] -37.037
Anisotropic B[1][2] -30.296
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -37.037
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 74.075
RMS Deviations
Key Refinement Restraint Deviation
c_angle_d 1.62
c_bond_d 0.01
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 1.07
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3043
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 0


Computing Package Purpose
HKL-2000 Data Reduction (intensity integration)
CCP4 (TRUNCATE) Data Reduction (data scaling)
MLPHARE Structure Solution
CNS Structure Refinement
Software Name Purpose
CNS refinement
MLPHARE model building
TRUNCATE data reduction
HKL-2000 data collection