X-RAY DIFFRACTION Experimental Data & Validation

X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details HEPES PH 7.5 100MM, NA ACETATE 1M, CD ACETATE 50 MM, GLYCEROL 5%

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 65.38 α = 90
b = 108.79 β = 90
c = 113.88 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 CYLINDRICAL GRAZING INCIDENCE MIRROR 2000-12-15
Diffraction Radiation
Monochromator Protocol
SI MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID29 0.9754,0.9796 ESRF ID29

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
1.6 30 99.1 0.055 -- -- 3.9 -- 106584 -- -- --
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)
1.6 1.69 95.1 0.224 -- 3.0 2.9 --

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
MAD 1.6 20.0 -- -- -- 101173 5323 99.0 -- 0.155 0.154 0.173 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 1.64 -- 362 6890 0.195 0.21 -- --
RMS Deviations
Key Refinement Restraint Deviation
r_chiral_restr 0.108
r_symmetry_hbond_refined 0.179
r_angle_other_deg 1.576
r_scbond_it 2.337
r_dihedral_angle_3_deg 2.801
r_mcbond_it 0.919
r_bond_refined_d 0.016
r_bond_other_d 0.003
r_gen_planes_refined 0.009
r_symmetry_vdw_other 0.236
r_xyhbond_nbd_refined 0.136
r_symmetry_vdw_refined 0.288
r_metal_ion_refined 0.173
r_nbd_refined 0.224
r_nbtor_other 0.323
r_gen_planes_other 0.006
r_scangle_it 3.476
r_mcangle_it 1.511
r_nbd_other 0.197
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4574
Nucleic Acid Atoms 0
Heterogen Atoms 16
Solvent Atoms 751

Software

Software
Software Name Purpose
REFMAC refinement version: 5.0
MOSFLM data reduction
SCALA data scaling
TRUNCATE data scaling
SOLVE phasing