2Y90

Crystal structure of Hfq riboregulator from E. coli (P6 space group)


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP293CRYSTALS WERE OBTAINED BY VAPOR DIFFUSION IN 2UL HANGING DROPS AT 20C. THE RESERVOIR CONTAINED 1.6 M AMMONIUM SULFATE, 0.1 M TRIS-HCL PH 8.0.
Crystal Properties
Matthews coefficientSolvent content
1.730

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 61.5α = 90
b = 61.5β = 90
c = 28.25γ = 120
Symmetry
Space GroupP 6

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 4MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-2ESRFID14-2

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
12.2554990.0611.77.62979-328.6
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)
12.252.389.30.174.3

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 1HK92.25253.261297923299.040.18810.17980.225827.9
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]
-2.664-2.6645.3279
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d14.25
f_angle_d1.164
f_chiral_restr0.077
f_bond_d0.007
f_plane_restr0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms510
Nucleic Acid Atoms
Solvent Atoms11
Heterogen Atoms

Software

Software
Software NamePurpose
PHENIXrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing