X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.4
Temperature 298.0
Details PEG 2000, Tris , MgCl2, pH 7.4, VAPOR DIFFUSION, HANGING DROP at 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 90.26 α = 90
b = 90.26 β = 90
c = 83.72 γ = 120
Symmetry
Space Group P 65

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR MARRESEARCH -- 2000-05-17
Diffraction Radiation
Monochromator Protocol
Si(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON MAX II BEAMLINE I711 0.958 MAX II I711

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
2.1 30 97.9 0.042 -- -- 14.0 22664 22179 2.0 1.0 17.3
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)
2.1 2.14 97.0 0.246 -- -- 6.0 --

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
MAD 2.1 29.55 0.0 0.0 22664 22179 2207 97.9 0.233 0.214 0.214 0.247 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 2.1 2.23 -- 370 3229 0.237 0.284 0.015 97.0
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 35.4
Anisotropic B[1][1] -1.35
Anisotropic B[1][2] 1.52
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.35
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 2.69
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.35
c_scbond_it 2.15
c_mcangle_it 2.83
c_mcbond_it 1.66
c_improper_angle_d 0.88
c_dihedral_angle_d 21.7
c_angle_deg 1.4
c_bond_d 0.006
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.25
Luzzati Sigma A (Observed) 0.17
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.3
Luzzati Sigma A (R-Free Set) 0.22
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2457
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 218

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
CNS 1.0 Structure Refinement
Software
Software Name Purpose
CNS version: 1.0 refinement
CNS model building