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

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 45.43 α = 90
b = 61.63 β = 101.09
c = 67.92 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 1997-04-15
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
1.7 20 95.6 0.055 -- -- 2.4 -- 38803 -- -3.0 19.1
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)
1.7 1.76 94.9 0.28 -- 2.6 2.3 --

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 1.75 20.0 -- 0.0 -- 33851 1773 95.0 -- -- 0.235 0.286 SHELLS
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 24.0
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 0.0
p_transverse_tor 22.0
p_staggered_tor 15.7
p_planar_tor 3.7
p_multtor_nbd 0.239
p_bond_d 0.009
p_angle_d 0.025
p_planar_d 0.028
p_mcbond_it 1.1
p_mcangle_it 1.6
p_scbond_it 1.2
p_scangle_it 1.9
p_plane_restr 0.021
p_chiral_restr 0.111
p_singtor_nbd 0.172
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2919
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 239

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
AMORE model building