X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details PROTEIN WAS CRYSTALLIZED FROM PEG-600 25-35% (V/V) 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 = 78.74 α = 90
b = 110 β = 90
c = 227.66 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 -- 2006-03-22
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-3 -- ESRF ID14-3

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 20 99.8 0.08 -- -- 5.0 -- 55109 -- 2.0 65.9
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 2.85 99.8 0.55 -- 3.6 4.8 --

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 20.0 -- -- -- 53810 1121 99.81 -- 0.20322 0.2026 0.23209 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 2.769 -- 82 3851 0.314 0.391 -- 99.72
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 56.338
Anisotropic B[1][1] 3.4
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 4.14
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -7.54
RMS Deviations
Key Refinement Restraint Deviation
r_bond_refined_d 0.01
r_chiral_restr 0.092
r_dihedral_angle_2_deg 33.044
r_gen_planes_refined 0.007
r_dihedral_angle_3_deg 17.748
r_mcangle_it 0.937
r_mcbond_it 0.483
r_scbond_it 1.39
r_angle_refined_deg 1.33
r_scangle_it 2.419
r_dihedral_angle_4_deg 20.4
r_dihedral_angle_1_deg 7.555
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8368
Nucleic Acid Atoms 0
Heterogen Atoms 142
Solvent Atoms 39

Software

Software
Software Name Purpose
REFMAC refinement version: 5.5.0109
MOSFLM data reduction
SCALA data scaling
REFMAC phasing