2GQR

SAICAR Synthetase Complexed with ADP-Mg2+


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, 50 mM ADP, 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
2.754.39

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 59.29α = 90
b = 67.16β = 90
c = 148.78γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDNOIR-1MMAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 4.2.20.97900, 0.97884, 0.98671ALS4.2.2

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
1246.3999.60.06716.37.024077540775
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)
22.0795.895.80.3314.75.42

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 DIFFRACTIONMADTHROUGHOUT224.934070240702408999.30.2080.2080.2040.239RANDOM25.7
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]
0.01-2.972.97
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.5
c_improper_angle_d3.55
c_scangle_it3.47
c_scbond_it2.54
c_mcangle_it2.03
c_mcbond_it1.31
c_angle_deg1.3
c_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3788
Nucleic Acid Atoms
Solvent Atoms363
Heterogen Atoms56

Software

Software
Software NamePurpose
d*TREKdata processing
CNSrefinement
PDB_EXTRACTdata extraction
d*TREKdata scaling
SOLVEphasing