X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.6
Details 50MM NA-CACODYLATE, PH 5.6, 20-25% PEG 400, 1% 2-ME. RT. ORTHORHOMBIC FORM ORTHO-2 APPEARS (SEE PDB ENTRY 1OR2).

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 40.7 α = 90
b = 52.96 β = 90
c = 84.42 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
-- ADSC ADSC MULTIWIRE COLLIMATOR 0.5 MM 1995-03-15
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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
1.9 20 98.0 0.0413 -- -- 3.3 -- 14706 -- -- --
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)
1.9 1.95 96.6 0.247 -- 2.0 3.1 --

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 1.9 20.0 -- -- -- 13960 737 98.3 -- 0.205 0.203 0.259 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 1.9 1.92 -- 33 498 0.311 0.273 -- --
RMS Deviations
Key Refinement Restraint Deviation
r_gen_planes_refined 0.016
r_scbond_it 4.73
r_xyhbond_nbd_refined 0.298
r_chiral_restr 0.174
r_nbd_refined 0.293
r_angle_other_deg 2.679
r_symmetry_vdw_refined 0.115
r_symmetry_hbond_refined 0.155
r_mcangle_it 4.078
r_scangle_it 6.722
r_bond_refined_d 0.037
r_mcbond_it 2.71
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1150
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 134

Software

Software
Software Name Purpose
REFMAC refinement version: 5.0
ADSC data reduction
ADSC data scaling
EPMR phasing