X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 5
Temperature 291.0
Details Ammonium Sulfate, Ammonium Acetate, pH 5.0, VAPOR DIFFUSION, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 84.74 α = 90
b = 105.63 β = 90
c = 46.9 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH monochromator 1995-08-23
Diffraction Radiation
Monochromator Protocol
Si111/Si220 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ELETTRA BEAMLINE 5.2R 1.0 ELETTRA 5.2R

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
2.05 21.43 89.3 -- 0.089 -- 4.4 24251 24251 0.0 0.0 26.71
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)
2.05 2.11 92.3 -- 0.657 1.0 4.3 1894

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 2.05 21.43 -- 2.0 26171 21465 2176 79.1 -- -- 0.19 0.236 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 2.05 2.18 -- 339 2744 0.271 0.285 0.015 69.7
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 34.8
Anisotropic B[1][1] 4.85
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -1.25
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -3.6
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 0.76
c_angle_deg 1.3
c_bond_d 0.005
c_mcbond_it 1.56
c_dihedral_angle_d 22.2
c_mcangle_it 2.59
c_scbond_it 2.29
c_scangle_it 3.58
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Sigma A (Observed) 0.27
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.28
Luzzati Sigma A (R-Free Set) 0.28
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2521
Nucleic Acid Atoms 0
Heterogen Atoms 12
Solvent Atoms 189

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
XTALVIEW refinement
CNS refinement
CCP4 data scaling version: (SCALA)