X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.6
Details PROTEIN WAS CRYSTALLIZED FROM 28% PEG 4000, 100 MM SODIUM CHLORIDE, 100 MM SODIUM CACODYLATE BUFFER, PH 6.6

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 71.36 α = 90
b = 170.23 β = 90
c = 40.66 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS -- 1997-02-18
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
2.55 100 75.0 0.077 0.077 -- 1.93 -- 12599 -- 1.0 19.89
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)
2.55 2.71 53.8 0.125 0.125 2.4 1.65 --

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 2.55 10.0 -- 1.0 -- 12328 1233 75.0 -- 0.181 -- 0.319 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 8.7
RMS Deviations
Key Refinement Restraint Deviation
p_mcangle_it 1.049
p_planar_d 0.045
p_planar_tor 2.4
p_scangle_it 0.91
p_mcbond_it 0.595
p_multtor_nbd 0.333
p_angle_d 0.043
p_singtor_nbd 0.261
p_xyhbond_nbd 0.301
p_scbond_it 0.523
p_bond_d 0.018
p_plane_restr 0.014
p_chiral_restr 0.209
p_staggered_tor 24.7
p_transverse_tor 25.6
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3514
Nucleic Acid Atoms 0
Heterogen Atoms 38
Solvent Atoms 183

Software

Software
Software Name Purpose
MERLOT phasing
PROLSQ refinement
XENGEN data reduction
XENGEN data scaling