X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 7
Temperature 280.0
Details 15% PEG 3350, 200 mM MgOAc, 100 mM Na Cacodylate, 5 mM TCEP, 2 mM imidazole, 3.5 mM L-N(omega)-nitroarginine-L-2,4-diaminobutyramide, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 280K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 57.91 α = 90
b = 106.99 β = 90
c = 156.99 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
CCD ADSC QUANTUM 315 mirrors 2003-06-20
Diffraction Radiation
Monochromator Protocol
yes SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 8.2.2 1.2398 ALS 8.2.2

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
1.74 50 97.1 0.077 0.095 -- 4.1 100785 97827 -3.0 -- 22.6
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)
1.74 1.8 95.0 0.631 0.538 2.85 3.8 9417

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 1.74 48.44 0.0 0.0 100785 97827 4908 97.5 -- 0.193 0.193 0.22 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 1.74 1.8 8596 443 8596 0.259 0.286 0.014 90.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 25.5
Anisotropic B[1][1] 4.35
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -2.63
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.73
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.4
c_improper_angle_d 0.99
c_bond_d 0.007
c_dihedral_angle_d 22.6
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.19
Luzzati Sigma A (Observed) 0.09
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.21
Luzzati Sigma A (R-Free Set) 0.11
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6439
Nucleic Acid Atoms 0
Heterogen Atoms 191
Solvent Atoms 604

Software

Software
Software Name Purpose
CNS refinement version: 1.1
HKL-2000 data reduction
SCALEPACK data scaling
CNS phasing