3LKK

Crystal structure of the isopentenyl phosphate kinase substrate complex


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelOtherT.acidophilum isopentenyl phosphate kinase solved by single-wavelength anomalous diffraction (SAD)

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP72740.1 M MIB buffer (2:3:3 molar ratio of sodium malonate, imidazole, boric acid), pH 7.0, 25% PEG1500, VAPOR DIFFUSION, SITTING DROP, temperature 274K
Crystal Properties
Matthews coefficientSolvent content
2.1843.53

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 124.307α = 90
b = 44.279β = 109.45
c = 91.764γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATERIGAKU RAXIS IVmirrors2008-09-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-007 HF1.5418

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
1230980.07511.23.731502
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)
22.0795.20.4753.3

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTT.acidophilum isopentenyl phosphate kinase solved by single-wavelength anomalous diffraction (SAD)2.00129.3031.3431495159997.910.17860.17580.2313
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]
2.30250.72610.3082-2.6107
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d16.161
f_angle_d1.783
f_chiral_restr0.101
f_bond_d0.019
f_plane_restr0.008
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3646
Nucleic Acid Atoms
Solvent Atoms198
Heterogen Atoms82

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
CrystalCleardata collection