4NFP

Crystal Structure Analysis of the 16mer GCAGNCUUAAGUCUGC containing 8-aza-7-deaza-7-ethynyl Adenosine


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7294.1510% MPD(v/v) (Drop), 35% MPD(v/v) (reservoir), 40mM Na-cacodylate trihydrate (pH 7), 12mM spermine tetrahydrochloride, 80mM SrCl2, 20mM MgCl2 hexahydrate, VAPOR DIFFUSION, SITTING DROP, temperature 294.15K
Crystal Properties
Matthews coefficientSolvent content
2.3748.21

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 74.8α = 90
b = 43.19β = 120.82
c = 48.79γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152012-07-27MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL7-11.127SSRLBL7-1

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
11.853591.30.02918.042.71163210615
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)
11.851.975.40.332.321.85858

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 REPLACEMENTTHROUGHOUT1.8532.17106151010051591.610.223640.223640.222220.2494RANDOM51.571
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]
2.81-1.814.53-3.65
RMS Deviations
KeyRefinement Restraint Deviation
r_angle_refined_deg1.894
r_angle_other_deg1.549
r_chiral_restr0.076
r_bond_other_d0.009
r_bond_refined_d0.007
r_gen_planes_refined0.007
r_gen_planes_other0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms1017
Solvent Atoms29
Heterogen Atoms9

Software

Software
Software NamePurpose
Blu-Icedata collection
PHASERphasing
REFMACrefinement