3TS9

Crystal Structure of the MDA5 Helicase Insert Domain


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP9293Crystal #1: 1.9 M ammonium sulfate, 49 mM sodium phosphate, 49 mM glycine, 14 mM succinic acid, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
2VAPOR DIFFUSION, HANGING DROP9293Crystal #2: 2.0 M ammonium sulfate, 49 mM sodium phosphate, 49 mM glycine, 14 mM succinic acid, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 23.878α = 90
b = 57.618β = 90
c = 90.332γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152010-06-22MSINGLE WAVELENGTH
22x-ray100CCDADSC QUANTUM 3152010-04-29MMAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X29A1.0750NSLSX29A
2SYNCHROTRONNSLS BEAMLINE X29A0.9791, 0.9793NSLSX29A

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
1,22.003501000.1228.16.7891788731.87
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1,22.0032.091006.8848

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Cut-off Sigma (I)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMAD2.00335.5461.878917882944299.040.19430.19430.19270.2216RANDOM41.0735
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
-2.616813.60071.8683
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d14.204
f_angle_d0.578
f_chiral_restr0.047
f_bond_d0.002
f_plane_restr0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1047
Nucleic Acid Atoms
Solvent Atoms40
Heterogen Atoms15

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing
RESOLVEphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
CBASSdata collection