1QK4

TOXOPLASMA GONDII HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE IMP COMPLEX


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
18.527730% PEG 4000, 100 MM TRIS (PH 8.5), 200 MM LI2SO4, 0.25 % BETA-OCTYLGLUCOPYRANOSIDE 1 MM IMP, 277 K
Crystal Properties
Matthews coefficientSolvent content
2.2145

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 84.537α = 90
b = 102.445β = 90
c = 108.825γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCHPT-COATED MIRROR1997-06-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL7-1SSRLBL7-1

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
11.912.599.60.07610.74.17479119.863
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)
11.91.971000.3833.54

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1QK3, SUBUNIT A, WITHOUT LOOPS, WATERS, OR GMP1.912.570933377899.60.1890.238RANDOM22.81
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]
RMS Deviations
KeyRefinement Restraint Deviation
p_scangle_it3.56
p_mcangle_it2.777
p_scbond_it2.266
p_mcbond_it1.9
p_chiral_restr0.142
p_planar_d0.038
p_angle_d0.033
p_bond_d0.014
p_plane_restr0.0118
p_angle_deg
RMS Deviations
KeyRefinement Restraint Deviation
p_scangle_it3.56
p_mcangle_it2.777
p_scbond_it2.266
p_mcbond_it1.9
p_chiral_restr0.142
p_planar_d0.038
p_angle_d0.033
p_bond_d0.014
p_plane_restr0.0118
p_angle_deg
p_hb_or_metal_coord
p_singtor_nbd
p_multtor_nbd
p_xhyhbond_nbd
p_xyhbond_nbd
p_planar_tor
p_staggered_tor
p_orthonormal_tor
p_transverse_tor
p_special_tor
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7079
Nucleic Acid Atoms
Solvent Atoms485
Heterogen Atoms92

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing