8KEB | pdb_00008keb

Crystal structure of 2'-dG-III riboswitch with 2'-dG


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4FE5 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.42910.08 M Sodium chloride, 0.01 M Potassium chloride, 0.01 M Magnesium chloride hexahydrate 0.04 M Sodium cacodylate trihydrate pH 6.4, 30% v/v (+/-)-2-Methyl-2,4-pentanediol, 0.012 M Spermine tetrahydrochloride, 0.1M Glycine.
Crystal Properties
Matthews coefficientSolvent content
2.4549.71

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 139.516α = 90
b = 26.834β = 112.71
c = 65.227γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS3 6M2022-08-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRF BEAMLINE BL18U10.97915SSRFBL18U1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rpim I (All)CC (Half)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
12.264.3596.60.0310.0210.99915.33.21135171.28
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.22.3280.11.7041.1030.3780.63.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE2.234.431.341122355495.390.20390.2020.20180.24190.228492.29
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d15.4638
f_angle_d1.0955
f_chiral_restr0.0456
f_plane_restr0.0073
f_bond_d0.0057
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms1502
Solvent Atoms6
Heterogen Atoms54

Software

Software
Software NamePurpose
PHENIXrefinement
PHENIXrefinement
autoPROCdata reduction
autoPROCdata scaling
PHASERphasing