X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5.5
Temperature 298.0
Details PEG 3350, sodium acetate, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 298.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 94.9 α = 90
b = 94 β = 90.1
c = 49.9 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 CUSTOM-MADE -- 1994-02-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 -- CHESS A1

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
1.4 40 96.0 0.037 -- -- 6.8 161029 161029 0.0 0.0 17.0
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)
1.4 1.42 91.6 0.343 -- -- 3.0 --

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
MIR 1.4 20.0 0.0 0.0 151073 151073 7559 88.0 0.205 0.205 0.198 0.212 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 1.4 1.45 -- 566 11112 0.285 0.314 -- 68.2
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.34
Anisotropic B[1][1] 1.356
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.569
Anisotropic B[2][2] 1.817
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -3.173
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 2.03
c_scangle_it 2.91
c_angle_deg 1.43
c_mcbond_it 1.56
c_scbond_it 2.21
c_bond_d 0.0098
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.18
Luzzati Sigma A (Observed) 0.14
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.19
Luzzati Sigma A (R-Free Set) 0.17
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6640
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 898

Software

Software
Software Name Purpose
MLPHARE phasing
CNS refinement version: 1.0
DENZO data reduction
SCALEPACK data scaling