1HJG

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


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1RXGPDB ENTRY 1RXG

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7293HANGING DROP AT 20 DEGREES C. 100 MM HEPES-NAOH, PH 7.0, 3% (W/V) GLYCEROL, 5 MM 2-OXO-3-METHYLBUTANOATE, 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
Matthews coefficientSolvent content
2.3948.2

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 107.1α = 90
b = 107.1β = 90
c = 70.858γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 41999-05-11MSINGLE 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
11.510088.80.0576.862.9382831.422.9
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)
11.51.5190.90.5421.42.4

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 1RXG1.519.441654171985.70.2250.2250.241RANDOM25.6
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]
-1.59-0.3-1.593.17
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.9
c_angle_deg1.2
c_improper_angle_d0.72
c_bond_d0.023
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.9
c_angle_deg1.2
c_improper_angle_d0.72
c_bond_d0.023
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_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 Atoms2077
Nucleic Acid Atoms
Solvent Atoms194
Heterogen Atoms9

Software

Software
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
CNSphasing