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 4.6.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 64.27 α = 90
b = 64.27 β = 90
c = 32.92 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 1996-07-01
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
1.5 30 94.5 0.08 -- -- 3.3 -- 6061 -- -- 15.74
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)
1.5 1.55 58.8 0.245 -- 2.2 1.5 --

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
OTHER 1.5 30.0 -- 0.0 -- 7662 383 94.5 -- -- 0.171 0.191 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.0
RMS Deviations
Key Refinement Restraint Deviation
p_special_tor 0.0
p_transverse_tor 14.7
p_staggered_tor 18.0
p_planar_tor 4.7
p_multtor_nbd 0.245
p_bond_d 0.015
p_angle_d 0.018
p_planar_d 0.021
p_mcbond_it 1.476
p_mcangle_it 2.377
p_scbond_it 3.147
p_scangle_it 4.764
p_singtor_nbd 0.17
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 423
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 40

Software

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