X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details CRYSTALS GROWN BY MICROBATCH METHOD (UNDER OIL) USING A 1:1 MIXTURE OF 30MG/ML PROTEIN, 400MM NACL, 20% GLYCEROL, 8MM TRIS PH8.0, 0.4MM EDTA AND 14% PEG 8K, 100MM NA-CACODYLATE PH6.5, 40MM CA(OAC)2, 40% GLYCEROL, pH 6.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 60.24 α = 90
b = 234.23 β = 114.7
c = 62.7 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD -- 2000-11-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-4 -- ESRF ID14-4

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
2.8 30 85.2 0.051 -- -- 2.1 -- 32855 -- -- 100.6
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)
2.8 2.94 74.1 0.147 -- 4.7 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
MOLECULAR REPLACEMENT 2.8 29.11 -- 0.0 -- 32815 1632 84.8 -- 0.238 0.238 0.285 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 2.8 2.98 -- 231 4540 0.433 0.464 0.031 73.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 83.5
Anisotropic B[1][1] 11.48
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 29.12
Anisotropic B[2][2] -24.03
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 12.55
RMS Deviations
Key Refinement Restraint Deviation
c_scangle_it 5.62
c_bond_d 0.01
c_mcangle_it 4.46
c_dihedral_angle_d 24.9
c_angle_deg 1.3
c_scbond_it 3.92
c_improper_angle_d 0.98
c_mcbond_it 2.76
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.47
Luzzati Sigma A (Observed) 0.55
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.61
Luzzati Sigma A (R-Free Set) 0.68
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8971
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 45

Software

Software
Software Name Purpose
CNS refinement version: 1.0
MOSFLM data reduction
SCALA data scaling
AMoRE phasing