X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.5
Details PROTEIN WAS CRYSTALLIZED FROM 28-32% PEG 4000/6000/8000, 200-300 MM SODIUM ACETATE, 100MM SODIUM CACODYLATE, PH 6.5; THEN SOAKED IN 28-32% PEG 4000/6000/8000, 200-300 MM SODIUM ACETATE, 100MM BIS-TRIS, PH 6.5.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 45.42 α = 90
b = 60.74 β = 102.42
c = 67.64 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1997-06-15
Diffraction Radiation
Monochromator Protocol
GE(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX7.2 -- SRS PX7.2

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
2.05 20 100.0 0.058 -- -- 3.5 -- 23495 -- -3.0 6.5
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)
2.05 2.14 100.0 0.12 -- 9.8 2.1 --

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
MULTIPLE ISOMORPHOUS REPLACEMENT 2.05 20.0 -- 0.0 -- 22684 1147 100.0 -- -- 0.171 0.232 SHELLS
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 15.5
RMS Deviations
Key Refinement Restraint Deviation
p_planar_tor 3.8
p_scangle_it 1.945
p_singtor_nbd 0.169
p_mcangle_it 1.472
p_chiral_restr 0.11
p_special_tor 0.0
p_scbond_it 1.286
p_transverse_tor 23.7
p_multtor_nbd 0.241
p_bond_d 0.008
p_planar_d 0.027
p_plane_restr 0.021
p_angle_d 0.024
p_staggered_tor 13.9
p_mcbond_it 1.028
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2908
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 394

Software

Software
Software Name Purpose
MLPHARE phasing
REFMAC refinement
DENZO data reduction
SCALEPACK data scaling