1NJI

Structure of chloramphenicol bound to the 50S ribosomal subunit


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP5.8291PEG 6000, KCl, MgCl2, NH4Cl, Na Acetate, pH 5.8, VAPOR DIFFUSION, SITTING DROP at 291K
Crystal Properties
Matthews coefficientSolvent content
3.1360.74

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 211.72α = 90
b = 299.75β = 90
c = 573.43γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray95CCDADSC QUANTUM 3152002-01-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X251.0000NSLSX25

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym 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
12.925099.80.2460.2468.887393891393074-338.5
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.922.9797.10.9650.9651.53.519931

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 REPLACEMENTTHROUGHOUT1JJ2350360866347962339196.50.2090.2090.1760.209same test set as 1JJ246
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]
-1.23-4.455.68
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d15.6
c_scangle_it2.18
c_mcangle_it1.95
c_improper_angle_d1.41
c_scbond_it1.39
c_angle_deg1.2
c_mcbond_it1.15
c_bond_d0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms28801
Nucleic Acid Atoms61617
Solvent Atoms7867
Heterogen Atoms251

Software

Software
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
CNSrefinement
HKL-2000data reduction
CNSphasing