X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details PROTEIN WAS CRYSTALLIZED FROM 25-35% (V/V) PEG 600 IN 50 - 100 MM HEPES, PH 6.0 - 7.0, OR WITH PEG-550 MME 30% (V/V) IN 50 MM NA ACETATE, PH 7.5.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 79.4 α = 90
b = 110.7 β = 90
c = 227.83 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD -- 2003-06-22
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-2 -- ESRF ID14-2

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
2.6 20 98.9 0.06 -- -- 3.7 -- 61576 -- 2.0 66.5
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)
2.6 2.72 98.6 0.46 -- 3.6 3.7 --

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 2.6 20.0 -- -- -- 60135 1248 98.52 -- 0.19245 0.19161 0.23491 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 2.6 2.666 -- 89 4171 0.283 0.355 -- 98.36
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 58.941
Anisotropic B[1][1] 4.7
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.04
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -7.73
RMS Deviations
Key Refinement Restraint Deviation
r_mcangle_it 1.067
r_angle_refined_deg 1.409
r_mcbond_it 0.542
r_dihedral_angle_4_deg 18.565
r_bond_refined_d 0.013
r_dihedral_angle_1_deg 6.173
r_dihedral_angle_3_deg 16.58
r_scbond_it 1.772
r_scangle_it 3.026
r_chiral_restr 0.095
r_gen_planes_refined 0.007
r_dihedral_angle_2_deg 34.009
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8316
Nucleic Acid Atoms 0
Heterogen Atoms 157
Solvent Atoms 197

Software

Software
Software Name Purpose
REFMAC refinement version: 5.5.0109
HKL-2000 data reduction
SCALA data scaling
REFMAC phasing