2NQ5

Crystal structure of methyltransferase from Streptococcus mutans


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.529325% PEG 3350, 0.1M Bis Tris, 0.2M magnesium chloride, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K
Crystal Properties
Matthews coefficientSolvent content
2.2545.37

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 52.291α = 90
b = 99.194β = 109.25
c = 78.619γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 4mirrors2006-10-27MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X4ANSLSX4A

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
11.92597.50.0564.3581045810414.8

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)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 1U1H1.924.960.158104291997.50.2280.2280.258RANDOM24.3
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]
5.276.84-4.45-0.82
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d21.5
c_scangle_it2.57
c_scbond_it1.85
c_mcangle_it1.65
c_angle_deg1.2
c_mcbond_it1.16
c_improper_angle_d0.82
c_bond_d0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5632
Nucleic Acid Atoms
Solvent Atoms348
Heterogen Atoms

Software

Software
Software NamePurpose
CNSrefinement
ADSCdata collection
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing