X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.5
Details 100 MM SODIUM ACETATE, PH 4.5, 5% PEG 8000, 0.5M NACL

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 71.63 α = 90
b = 71.63 β = 90
c = 37.38 γ = 120
Symmetry
Space Group P 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC -- 1998-01-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 -- ALS 5.0.2

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 50 83.9 -- 0.034 -- 4.2 -- 30005 -- -- 18.1
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 1.54 37.3 -- 0.295 0.3 2.9 --

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
MIRAS 1.5 20.0 -- 0.0 -- 30005 1500 83.9 -- -- 0.181 0.222 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 23.6
RMS Deviations
Key Refinement Restraint Deviation
p_transverse_tor 20.6
p_staggered_tor 16.5
p_planar_tor 5.5
p_multtor_nbd 0.256
p_bond_d 0.013
p_angle_d 0.029
p_planar_d 0.032
p_mcbond_it 1.613
p_mcangle_it 2.678
p_scbond_it 2.007
p_scangle_it 2.989
p_chiral_restr 0.141
p_singtor_nbd 0.171
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1484
Nucleic Acid Atoms 0
Heterogen Atoms 56
Solvent Atoms 202

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
MLPHARE, ARP/WARP, DM Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement
DM model building
ARP model building
MLPHARE model building
SCALA data reduction
MOSFLM data collection