X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1AFK1AFK (using one molecule)

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.5291PROTEIN WAS CRYSTALLIZED FROM 25% PEG 3350, 20 MM SODIUM CITRATE, PH 5.5 Prolinyl-5'-O-adenosine phosphoramidate soaking was achieved as follows. 1 uL of a stock solution of 100 mM ligand was added to 2uL of reservoir solution, to achieve a concentration of ~33 mM in the soaking solution. A few RNase A crystals were soaked for 45 - 90 minutes in the soaking solution
Crystal Properties
Matthews coefficientSolvent content
1.8935.01

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 98.532α = 90
b = 30.689β = 90.56
c = 68.641γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 300 mm CCDC(111)2019-02-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 21-ID-G0.97857APS21-ID-G

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rpim I (All)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
11.515096.90.0620.03425.764.231473
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rpim I (All)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.511.56830.5880.3721.383.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1AFK (using one molecule)1.5149.3129895157696.470.17110.16870.2171RANDOM26.492
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]
-0.25-0.111.9-1.65
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.973
r_dihedral_angle_3_deg15.548
r_dihedral_angle_1_deg7.368
r_dihedral_angle_4_deg7.243
r_angle_refined_deg1.348
r_chiral_restr0.107
r_gen_planes_refined0.014
r_bond_refined_d0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1902
Nucleic Acid Atoms
Solvent Atoms270
Heterogen Atoms39

Software

Software
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing