X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 6.5
Temperature 294.0
Details PEG 20K, sodium chloride, BME, methionine, glycerol, pH 6.5, VAPOR DIFFUSION, temperature 294K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 52.24 α = 90
b = 98.29 β = 102.86
c = 67.82 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MAR CCD 165 mm -- 2003-07-18
Diffraction Radiation
Monochromator Protocol
SAGITALLY FOCUSED Si SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 31-ID 0.9198 APS 31-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
1.86 26.3 98.2 0.075 0.075 -- 13.7 54757 54747 -- 1.0 24.7
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)
1.86 1.96 91.6 0.505 0.505 2.9 5.6 7398

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 1.86 5.0 -- 2.0 51835 51825 2630 -- 0.207 0.207 0.194 0.249 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 1.86 1.91 3412 178 -- 0.3 0.33 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model Isotropic
Mean Isotropic B 31.0
RMS Deviations
Key Refinement Restraint Deviation
r_scangle_it 4.12
r_scbond_it 2.822
r_mcangle_it 2.401
r_mcbond_it 1.478
r_angle_refined_deg 1.643
r_bond_refined_d 0.018
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.213
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4587
Nucleic Acid Atoms 0
Heterogen Atoms 8
Solvent Atoms 456

Software

Computing
Computing Package Purpose
MAR Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
EPMR Structure Solution
REFMAC 5.1 Structure Refinement
Software
Software Name Purpose
REFMAC version: 5.1 refinement
EPMR model building
SCALA data reduction
MAR data collection