4AKK

Structure of the NasR transcription antiterminator


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.52930.1 M HEPES PH7.5, 20 MM MGCL2, 22 % POLYACRYLIC ACID, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K
Crystal Properties
Matthews coefficientSolvent content
2.645

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 159.23α = 90
b = 113.1β = 109.3
c = 59.35γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2010-02-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSOLEIL BEAMLINE PROXIMA 1SOLEILPROXIMA 1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.154598.79.793.955369633.6
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.152.293.12.52.5

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONSADNONE2.14543.8661.9953680268598.820.20250.20040.241344.53
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]
14.73874.1289-8.1989-6.5398
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d15.039
f_angle_d0.856
f_chiral_restr0.056
f_bond_d0.006
f_plane_restr0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5795
Nucleic Acid Atoms
Solvent Atoms264
Heterogen Atoms36

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
SHARPphasing