X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Temperature 293.0
Details ammonium sulfate, potassium chloride, HEPES-NaOH, dithiothreitol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 7.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 91.25 α = 90
b = 91.25 β = 90
c = 148.63 γ = 120
Symmetry
Space Group H 3 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2003-07-18
Diffraction Radiation
Monochromator Protocol
DIAMOND (111) DOUBLE-CRYSTAL MONOCHROMATOR MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 14-ID-B 0.9791,0.9789,0.9562 APS 14-ID-B

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
1.85 50 99.1 0.06 -- -- 9.5 -- 39408 -- -3.0 21.8
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)
1.85 1.92 93.2 0.725 -- 2.0 -- --

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 1.85 14.86 -- 0.0 36309 36309 1772 92.3 -- 0.212 0.212 0.23 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 1.86 1.97 -- 220 4623 0.324 0.355 0.024 74.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 46.4
Anisotropic B[1][1] 5.46
Anisotropic B[1][2] 4.19
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 5.46
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -10.91
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 3.15
c_scbond_it 2.11
c_mcangle_it 2.21
c_mcbond_it 1.42
c_improper_angle_d 1.02
c_bond_d 0.004
c_angle_deg 0.9
c_dihedral_angle_d 16.3
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) 0.26
Luzzati Sigma A (R-Free Set) 0.29
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 962
Nucleic Acid Atoms 810
Heterogen Atoms 10
Solvent Atoms 70

Software

Computing
Computing Package Purpose
HKL-2000 Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS 1.1 Structure Solution
CNS 1.1 Structure Refinement
Software
Software Name Purpose
CNS version: 1.1 refinement