X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 295.0
Details sodium acetate, cacodylate , pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 124.12 α = 90
b = 124.12 β = 90
c = 66.98 γ = 90
Symmetry
Space Group I 4 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 95
2 95
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2000-07-08
CCD ADSC QUANTUM 4 -- 2000-07-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12B -- NSLS X12B
SYNCHROTRON NSLS BEAMLINE X26C -- NSLS X26C

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
1.65 50 97.8 0.086 -- -- 2.5 58834 58834 0.0 0.0 24.6
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)
1.65 1.71 100.0 0.411 -- -- 2.4 6007

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
-- 1.65 20.0 0.0 0.0 31406 29820 1586 99.3 0.2084 0.2084 0.2065 0.242 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.72
Anisotropic B[1][1] 0.12
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.12
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.13
RMS Deviations
Key Refinement Restraint Deviation
p_scangle_it 7.58
p_scbond_it 4.685
p_mcangle_it 3.413
p_mcbond_it 2.104
p_planar_d 0.008
p_angle_deg 1.963
p_bond_d 0.019
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1443
Nucleic Acid Atoms 0
Heterogen Atoms 5
Solvent Atoms 177

Software

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