X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details pH 6.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56.65 α = 90
b = 61.67 β = 90
c = 30.42 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
IMAGE PLATE RIGAKU RAXIS IIC -- 1995-10-13
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH3R -- -- --

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
1.6 30 90.4 0.044 -- -- 4.4 -- 13287 -- 1.0 16.97
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)
1.6 1.66 70.8 0.141 -- -- 2.5 --

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 1.6 8.0 -- -- -- 12449 680 90.5 -- 0.173 0.184 0.211 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 18.2
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 10.6
p_transverse_tor 22.4
p_staggered_tor 16.8
p_planar_tor 4.2
p_xyhbond_nbd 0.14
p_multtor_nbd 0.244
p_bond_d 0.01
p_angle_d 0.026
p_planar_d 0.03
p_mcbond_it 1.414
p_mcangle_it 2.094
p_scbond_it 2.224
p_scangle_it 3.469
p_plane_restr 0.0236
p_chiral_restr 0.138
p_singtor_nbd 0.173
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.15
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 913
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 96

Software

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