X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.6
Details PROTEIN WAS CRYSTALLIZED FROM 30% PEG 8000, 100 MM SODIUM CACODYLATE, PH 6.6

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 31.47 α = 90
b = 53.69 β = 106.25
c = 32.2 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 NO OPTICS 1996-02
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ENRAF-NONIUS FR571 -- -- --

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 14 99.1 0.074 0.08 -- 5.5 -- 6859 -- 0.0 21.5
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)
2.01 2.04 97.2 0.265 0.311 3.0 3.0 --

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
MIR 2.0 14.0 -- 0.0 6831 6831 506 99.1 0.16 0.16 -- 0.21 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model TNT BCORREL
RMS Deviations
Key Refinement Restraint Deviation
t_dihedral_angle_d 24.114
t_it 7.609
t_bond_d 0.019
t_trig_c_planes 0.009
t_incorr_chiral_ct 0.0
t_nbd 0.045
t_gen_planes 0.016
t_angle_deg 2.059
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 887
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 130

Software

Software
Software Name Purpose
PHASES phasing
TNT refinement version: 5E
DENZO data reduction
SCALEPACK data scaling