X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.3
Temperature 290.0
Details 1.3 M ammonium sulfate, 175 mM NaCitrate pH 6.5, 100 mM MES pH 6.3, 20 mM DTT, 1uM ZnCl2, VAPOR DIFFUSION, HANGING DROP, temperature 290K, pH 6.30

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 271.15 α = 90
b = 268.68 β = 131.55
c = 184.62 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 BENT CONICAL SI-MIRROR (RH COATING) 2001-09-19
Diffraction Radiation
Monochromator Protocol
BENT GE(III) MONOCHROMATOR SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 14-BM-C -- APS 14-BM-C

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
2.55 30 93.3 -- 0.05 -- -- 320017 300151 -- 0.0 38.7
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)
2.55 2.64 85.6 -- 0.256 3.1 -- --

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 2.55 30.0 -- 0.0 320017 298789 15041 93.4 -- 0.192 0.192 0.213 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 2.55 2.71 -- 2311 43615 0.304 0.321 0.007 86.3
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 57.0
Anisotropic B[1][1] -6.78
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -3.59
Anisotropic B[2][2] 10.53
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -3.75
RMS Deviations
Key Refinement Restraint Deviation
c_dihedral_angle_d 20.0
c_scangle_it 9.34
c_mcangle_it 2.16
c_improper_angle_d 0.78
c_mcbond_it 1.26
c_scbond_it 7.55
c_angle_deg 1.2
c_bond_d 0.007
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.3
Luzzati Sigma A (Observed) 0.46
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.33
Luzzati Sigma A (R-Free Set) 0.49
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 32069
Nucleic Acid Atoms 0
Heterogen Atoms 291
Solvent Atoms 1375

Software

Software
Software Name Purpose
CNS refinement version: 1.0
HKL-2000 data reduction
HKL-2000 data scaling
CNS phasing