1HJF

Alteration of the co-substrate selectivity of deacetoxycephalosporin C synthase: The role of arginine-258


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7293HANGING DROP AT 20 DEGREES C. 100 MM HEPES-NAOH, PH 7.0, 6% (W/V) GLYCEROL, 5 MM 2-OXO-4-METHYLPENTANOATE, 1.5-1.7 M AMMONIUM SULPHATE CRYSTALS SOAKED IN 5 MM IRON(II) SULPHATE IN MOTHER LIQUOR UNDER ANAEROBIC CONDITIONS BEFORE DATA COLLECTION.
Crystal Properties
Matthew coefficientSolvent content
2.4248.78

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 106.933α = 90
b = 106.933β = 90
c = 70.819γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 41999-07-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSRS BEAMLINE PX9.6SRSPX9.6

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
11.610095.70.077.53.332966128.3
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)
11.61.6995.70.72813.2

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 REPLACEMENTTHROUGHOUTPDB ENTRY 1RXG1.619.3835225144288.30.2410.2410.269RANDOM30.3
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]
-1.8-0.21-1.83.61
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.6
c_angle_deg1.2
c_improper_angle_d0.66
c_bond_d0.013
c_dihedral_angle_d_prot
c_angle_d_na
c_angle_d
c_angle_deg_na
c_angle_deg_prot
c_bond_d_na
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.6
c_angle_deg1.2
c_improper_angle_d0.66
c_bond_d0.013
c_dihedral_angle_d_prot
c_angle_d_na
c_angle_d
c_angle_deg_na
c_angle_deg_prot
c_bond_d_na
c_dihedral_angle_d_na
c_angle_d_prot
c_bond_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2147
Nucleic Acid Atoms
Solvent Atoms99
Heterogen Atoms10

Software

Software
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
CNSphasing