2GQS

SAICAR Synthetase Complexed with CAIR-Mg2+ and ADP


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.5296Well Solution: 3.4-3.8 M sodium formate, 50 mM Tris; Protein Solution: 15 mg/mL protein, 1.5 mM CAIR, 50 mM ADP, 10 mM L-aspartate, 5 mM DTT, 5 mM EDTA, 15 mM Tris, 25 mM KCl, 55 mM magnesium chloride , pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 296K
Crystal Properties
Matthews coefficientSolvent content
2.7555.33

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 59.43α = 90
b = 67.12β = 90
c = 149.31γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray120IMAGE PLATERIGAKU RAXIS IVMSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU2001.5418

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
12.0549.9190.40.05914.85.9434593
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.052.1261.70.284.24.36

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.0524.963456134561344690.20.2240.2240.220.263RANDOM31.2
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]
-0.71-6.557.26
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.6
c_scangle_it2.89
c_scbond_it2.08
c_mcangle_it1.79
c_angle_deg1.3
c_mcbond_it1.19
c_improper_angle_d0.72
c_bond_d0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3788
Nucleic Acid Atoms
Solvent Atoms203
Heterogen Atoms104

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
CrystalCleardata reduction
d*TREKdata scaling
AMoREphasing