X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details PROTEIN WAS CRYSTALLISED FROM 50-60% SATURATED AMMONIUM SULFATE IN SODIUM ACETATE BUFFER (50 MM) AT PH 4.5., pH 4.6

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 64.38 α = 90
b = 64.38 β = 90
c = 32.85 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RU200 MIRRORS 1996-05-01
Diffraction Radiation
Monochromator Protocol
NI FILTER 0.00015" SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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 97.2 0.067 -- -- 2.0 -- 6484 -- -- --
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 86.0 0.217 -- 3.2 1.8 --

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
OTHER 1.6 30.0 -- 0.0 -- 6484 324 97.2 -- -- 0.183 0.234 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.0
RMS Deviations
Key Refinement Restraint Deviation
p_angle_d 0.023
p_special_tor 0.0
p_bond_d 0.016
p_scangle_it 6.478
p_singtor_nbd 0.179
p_mcangle_it 3.251
p_multtor_nbd 0.263
p_planar_d 0.029
p_staggered_tor 18.1
p_transverse_tor 16.0
p_scbond_it 4.55
p_planar_tor 5.3
p_mcbond_it 2.193
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 423
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 37

Software

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