X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.7
Temperature 294.0
Details CO-saturated, 2.8M ammonium sulphate, 100mM Tris-Cl, 1 mM dithionite, crystallized in seeded batch, pH 8.7, temperature 294.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 91.2 α = 90
b = 91.2 β = 90
c = 45.71 γ = 120
Symmetry
Space Group P 6

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 283
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MAR CCD 130 mm -- 2001-12-18
Diffraction Radiation
Monochromator Protocol
-- LAUE
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID09 -- ESRF ID09

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
1.55 29.88 96.0 -- 0.064 -- 26.7 31195 31195 0.0 -3.0 19.7
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)
1.55 1.62 75.9 -- 0.414 4.5 4.1 3574

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
Rigid Body from starting model 1.6 29.88 -- 0.0 28574 28574 1422 99.2 0.167 0.167 0.166 0.184 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 1.6 1.7 4456 269 4456 0.222 0.238 0.014 98.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 19.4
Anisotropic B[1][1] 0.54
Anisotropic B[1][2] 0.67
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.54
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.08
RMS Deviations
Key Refinement Restraint Deviation
c_mcbond_it 1.63
c_mcangle_it 2.28
c_dihedral_angle_d 15.9
c_improper_angle_d 0.72
c_bond_d 0.004
c_scbond_it 3.41
c_scangle_it 4.77
c_angle_deg 1.0
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.15
Luzzati Sigma A (Observed) 0.11
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.17
Luzzati Sigma A (R-Free Set) 0.12
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1332
Nucleic Acid Atoms 0
Heterogen Atoms 58
Solvent Atoms 143

Software

Software
Software Name Purpose
SPEC data collection
PROW data reduction version: + CCP4
CNS refinement version: 1.0
SPEC data reduction
PROW data scaling
CCP4 data scaling
CNS phasing version: 1.0