X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 293.0
Details 10% PEG4000; 200mM MgCl2; 100mM Tris HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 94.13 α = 90
b = 121.87 β = 90
c = 47.58 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRUKER unfocused 1998-07-12
Diffraction Radiation
Monochromator Protocol
Si 111 reflection MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 17-ID 1.03321, 0.97939, 0.97928 APS 17-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
1.9 10 97.52 -- 0.042 -- 4.5 -- n/a -- -- 7.2
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)
1.899 1.968 -- -- 0.107 -- -- --

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
MAD 1.9 9.99 -- 0.0 -- 20886 2067 95.5 -- -- 0.18 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 1.9 2.02 -- 310 2764 0.192 0.231 0.013 85.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 18.8
Anisotropic B[1][1] 5.89
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -5.04
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.85
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 1.16
c_scbond_it 0.72
c_mcangle_it 0.92
c_mcbond_it 0.53
c_improper_angle_d 0.71
c_bond_d 0.004
c_angle_deg 1.3
c_dihedral_angle_d 22.9
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.22
Luzzati Sigma A (R-Free Set) 0.1
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1451
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 427

Software

Computing
Computing Package Purpose
SAINT Data Reduction (intensity integration)
SAINT Data Reduction (data scaling)
MLPHARE Structure Solution
CNX 2000.1 Structure Refinement
Software
Software Name Purpose
CNX version: 2000.1 refinement
MLPHARE model building
SAINT data reduction
SAINT data collection