1VL2

Crystal structure of Argininosuccinate synthase (TM1780) from Thermotoga maritima at 1.65 A resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1KH1 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION,SITTING DROP,NANODROP29316% PEG 3350, 0.20M Mg Acetate, 0.10M Imidazole , VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.1642.67

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 95.322α = 90
b = 114.906β = 90
c = 149.606γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC2003-09-20MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.2.1ALS8.2.1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.655099.950.07322.214.9119585825.36
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.651.7199.870.6652.174.619384

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 REPLACEMENTTHROUGHOUT1KH11.6549.21185987975799.750.179020.177420.2094RANDOM16.635
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]
0.250.43-0.68
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.489
r_dihedral_angle_4_deg19.743
r_dihedral_angle_3_deg13.062
r_scangle_it7.419
r_dihedral_angle_1_deg5.955
r_scbond_it5.175
r_mcangle_it3.295
r_mcbond_it2.39
r_angle_refined_deg1.627
r_angle_other_deg1.345
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.489
r_dihedral_angle_4_deg19.743
r_dihedral_angle_3_deg13.062
r_scangle_it7.419
r_dihedral_angle_1_deg5.955
r_scbond_it5.175
r_mcangle_it3.295
r_mcbond_it2.39
r_angle_refined_deg1.627
r_angle_other_deg1.345
r_mcbond_other0.603
r_nbd_refined0.224
r_symmetry_vdw_other0.202
r_nbd_other0.183
r_xyhbond_nbd_refined0.155
r_symmetry_vdw_refined0.123
r_symmetry_hbond_refined0.115
r_chiral_restr0.108
r_nbtor_other0.089
r_bond_refined_d0.018
r_gen_planes_refined0.007
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms12327
Nucleic Acid Atoms
Solvent Atoms1184
Heterogen Atoms

Software

Software
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
CNSrefinement
DENZOdata reduction
CNSphasing