X-RAY DIFFRACTION

Crystallization Details
Method pH Temprature Details
X-RAY DIFFRACTION 7.5 295.0 IDH, stored in metal-free final buffer, was diluted to 25, 30, 35 and 40 mg/ml using metal-free 2X buffer; (70mM Na2HPO4 , 18 mM citric acid, 200 mM NaCl, 0.4 mM DTT, pH 5.4). and was crystallized from hanging drops using 5 l each of these IDH solutions and 5 l each of 34, 36, 38, 40, 42, and 44 % (NH4)2SO4 solutions in crystallization buffer (35mM Na2HPO4 , 9 mM citric acid, 100 mM NaCl, 0.2 mM DTT at pH 6.1, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 22K
Unit Cell:
a: 103.306 Å b: 103.306 Å c: 150.004 Å α: 90.00° β: 90.00° γ: 90.00°
Symmetry:
Space Group: P 43 21 2
Crystal Properties:
Matthew's Coefficient: 4.37 Solvent Content: 71.83
Refinement Statistics
Diffraction ID Structure Solution Method Cross Validation Method Resolution Limit (High) Resolution Limit (Low) Number of Reflections (Observed) Number of Reflections (R-free) Percent Reflections (Observed) R-Work R-Free Mean Isotropic
X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1.85 24.86 66647 6755 95.5 0.192 0.225 25.3
Data Collection
Overall
Resolution Limit (High) Resolution Limit (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
1.85 25 ? 0.073 ? 20.7 14 69674 69674 1 2 16.6
Highest Resolution Shell
# Resolution Limits (Low) Resolution Limits (High) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1 1.85 1.92 98.6 ? ? 3.2 ? ?
Diffraction
Diffraction experiment
Crystal ID Scattering Type Data Collection Temprature Detector Detector Type Details Collection Date Monochromator Protocol
1 100 K
Radiation Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 1.00 ALS 5.0.2
Software
Software Name Purpose Version
CNS refinement 1.0
DENZO data reduction .
SCALEPACK data scaling .
X-PLOR phasing .