2R98

Crystal Structure of N-acetylglutamate synthase (selenoMet substituted) from Neisseria gonorrhoeae


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.82916% PEG3350, 100mM CsCl, 100 mM sodium citrate, pH 5.8, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
2.5551.76

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 98.975α = 90
b = 98.975β = 90
c = 89.292γ = 120
Symmetry
Space GroupP 3 1 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298CCD2007-06-18MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 21-ID-D0.97472APS21-ID-D

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
12.42099.90.09233.89.21972619707
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)
12.42.541000.6842.28.3

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)R-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMADTHROUGHOUT2.4201970718665101099.520.196940.194370.190.243940.2RANDOM45.527
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]
1.250.631.25-1.88
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.022
r_dihedral_angle_3_deg23.46
r_dihedral_angle_4_deg21.411
r_dihedral_angle_1_deg9.703
r_scangle_it8.942
r_scbond_it6.423
r_mcangle_it3.674
r_mcbond_it2.531
r_angle_refined_deg2.07
r_nbtor_refined0.331
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3227
Nucleic Acid Atoms
Solvent Atoms92
Heterogen Atoms51

Software

Software
Software NamePurpose
REFMACrefinement
CrystalCleardata collection
HKL-2000data reduction
HKL-2000data scaling
SHELXSphasing
CNSrefinement