X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.3
Details CACODYLATE PH 6.3, PEG 8K 25%

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 117.3 α = 90
b = 64.9 β = 126.1
c = 75.9 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 289
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC MIRRORS 1996-09
Diffraction Radiation
Monochromator Protocol
NI FILTER --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
1.9 50 94.1 0.054 -- -- 2.9 -- 33192 -- 1.0 22.0
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)
1.9 1.97 84.1 0.323 -- 2.6 2.06 --

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
DIFFERENCE FOURIER 1.9 50.0 -- 1.0 -- 33192 3300 90.2 -- 0.182 0.182 0.216 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.9 1.99 -- 316 2776 0.3142 0.3216 -- 67.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 33.8
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 2.5
x_scbond_it 2.0
x_mcangle_it 2.0
x_mcbond_it 1.5
x_improper_angle_d 1.08
x_bond_d 0.007
x_angle_deg 1.13
x_dihedral_angle_d 22.7
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Resolution Cutoff (Low) 50.0
Luzzati ESD (R-Free Set) 0.27
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2888
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 167

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
X-PLOR version: 3.1 model building
SCALEPACK data reduction
DENZO data collection