X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.6
Details HANGING DROP AT 20C WITH RESERVOIR: 30% PEG 4000, 100 MM NA CITRATE PH=5.6, 5 MM MGCL2, 200 MM AMMONIUM ACETATE, pH 5.60

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 154.7 α = 90
b = 88.7 β = 90
c = 62.6 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
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
2.7 30 84.7 -- 0.062 -- 2.4 -- 21165 -- -- 58.7
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)
2.7 2.76 80.6 -- 0.434 2.1 2.3 --

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 2.7 19.8 -- 0.0 -- 20669 1062 85.1 -- 0.256 0.256 0.28 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 2.7 2.87 -- 165 3068 0.378 0.449 0.035 81.5
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 58.4
Anisotropic B[1][1] 4.18
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.29
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.11
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.009
c_mcbond_it 11.17
c_scangle_it 20.81
c_mcangle_it 17.32
c_dihedral_angle_d 25.0
c_angle_deg 1.5
c_scbond_it 14.59
c_improper_angle_d 0.94
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.4
Luzzati Sigma A (Observed) 0.5
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.47
Luzzati Sigma A (R-Free Set) 0.6
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5780
Nucleic Acid Atoms 0
Heterogen Atoms 98
Solvent Atoms 30

Software

Software
Software Name Purpose
CNS refinement version: 0.5
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing