X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.5
Details 16% PEG 4K, 0.1 M SODIUM ACETATE PH 5.5

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 61.75 α = 90
b = 61.75 β = 90
c = 146.15 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAR scanner 300 mm plate MIRROR 1997-10-26
Diffraction Radiation
Monochromator Protocol
SILICON CRYSTAL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X26C -- NSLS X26C

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
1.58 32 94.0 0.045 0.045 -- 4.0 -- 37375 -- 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)
1.58 1.61 63.2 0.141 0.141 -- -- --

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
OTHER 1.58 32.0 -- 0.0 -- 37354 3745 94.0 -- 0.144 0.144 0.171 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 1.58 1.68 -- 523 4735 0.171 0.202 0.009 81.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 19.0
Anisotropic B[1][1] 1.14
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 1.14
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -2.28
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.9
c_scangle_it 4.58
c_improper_angle_d 1.27
c_mcangle_it 2.12
c_bond_d 0.019
c_scbond_it 3.44
c_dihedral_angle_d 23.6
c_mcbond_it 1.37
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.13
Luzzati Sigma A (Observed) 0.06
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.15
Luzzati Sigma A (R-Free Set) 0.09
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2032
Nucleic Acid Atoms 0
Heterogen Atoms 3
Solvent Atoms 251

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CCP4 model building
CNS refinement
CCP4 phasing
CNS phasing