X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6
Temperature 280.0
Details PEG 4000, MES, ammonium acetate, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 280K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 51.65 α = 90
b = 110.49 β = 90
c = 164.74 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH mirror 2000-06-10
Diffraction Radiation
Monochromator Protocol
yes SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 -- SSRL BL7-1

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
2.15 30 97.2 0.095 0.095 -- 3.1 -- 51470 -- -3.0 29.3
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)
2.15 2.2 97.2 0.677 0.677 2.0 2.6 3111

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
FOURIER SYNTHESIS 2.15 29.5 -- 0.0 -- 51339 2594 98.3 -- 0.228 0.228 0.27 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 2.15 2.23 -- 261 4736 0.387 0.41 0.025 97.4
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 42.0
Anisotropic B[1][1] 18.26
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.51
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -18.77
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.3
c_dihedral_angle_d 22.4
c_bond_d 0.006
c_improper_angle_d 0.99
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Luzzati Sigma A (Observed) 0.47
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.37
Luzzati Sigma A (R-Free Set) 0.53
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6654
Nucleic Acid Atoms 0
Heterogen Atoms 159
Solvent Atoms 393

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
CNS refinement
CNS phasing