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_transverse_tor 25.6
p_staggered_tor 24.7
p_planar_tor 2.4
p_xyhbond_nbd 0.301
p_multtor_nbd 0.333
p_bond_d 0.018
p_angle_d 0.043
p_planar_d 0.045
p_mcbond_it 0.595
p_mcangle_it 1.049
p_scbond_it 0.523
p_scangle_it 0.91
p_plane_restr 0.014
p_chiral_restr 0.209
p_singtor_nbd 0.261
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

Computing
Computing Package Purpose
XENGEN Data Reduction (intensity integration)
XENGEN Data Reduction (data scaling)
MERLOT Structure Solution
PROLSQ Structure Refinement
Software
Software Name Purpose
PROLSQ refinement
MERLOT model building