4CGI

Interrogating HIV integrase for compounds that bind- a SAMPL challenge


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3ZSQPDB ENTRY 3ZSQ

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
15.5THE PROTEIN WAS CONCENTRATED TO 5.5 MG/ML IN 40 MM TRIS PH 8.0, 250 MM NACL, 30 MM MGCL2, 5 MM DTT AND SET UP IN A 1:1 RATIO WITH 1.6 TO 2.0 M AMMONIUM SULFATE, 100 MM SODIUM ACETATE BUFFER PH 5.0 TO 5.5.
Crystal Properties
Matthews coefficientSolvent content
2.9558

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 71.05α = 90
b = 71.05β = 90
c = 66.38γ = 120
Symmetry
Space GroupP 31

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC CCD2009-03-31MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAUSTRALIAN SYNCHROTRON BEAMLINE MX1Australian SynchrotronMX1

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
12.0745.11000.119.45.322839
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)
12.072.181000.7625.3

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 REPLACEMENTTHROUGHOUTPDB ENTRY 3ZSQ2.0735.5521664115499.980.184620.183210.21127RANDOM36.121
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]
0.040.040.04-0.12
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.605
r_dihedral_angle_4_deg17.212
r_dihedral_angle_3_deg14.079
r_dihedral_angle_1_deg4.998
r_mcangle_it3.393
r_scbond_it2.784
r_mcbond_it2.147
r_mcbond_other2.145
r_angle_refined_deg1.751
r_angle_other_deg0.749
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.605
r_dihedral_angle_4_deg17.212
r_dihedral_angle_3_deg14.079
r_dihedral_angle_1_deg4.998
r_mcangle_it3.393
r_scbond_it2.784
r_mcbond_it2.147
r_mcbond_other2.145
r_angle_refined_deg1.751
r_angle_other_deg0.749
r_chiral_restr0.06
r_bond_refined_d0.007
r_gen_planes_refined0.004
r_bond_other_d0.002
r_gen_planes_other0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2323
Nucleic Acid Atoms
Solvent Atoms65
Heterogen Atoms100

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing