1A9M

G48H MUTANT OF HIV-1 PROTEASE IN COMPLEX WITH A PEPTIDIC INHIBITOR U-89360E


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION6.8THE PROTEIN SOLUTION CONTAINED 6.5 MG/ML MUTANT HIV-1 PROTEASE IN 20 MM SODIUM ACETATE, 1 MM DITHIOTHREITOL, PH 5.5, WITH A 10-FOLD MOLAR EXCESS OF INHIBITOR. THE RESERVOIR SOLUTIONS FOR THE VAPOR DIFFUSION CONTAINED 10% DIMETHYLSULFOXIDE, 30 MM B-MERCAPTOETHANOL AND 4% 2-PROPANOL IN ADDITION TO THE PRECIPITANT. THE MOST FAVORABLE CRYSTALLIZATION CONDITIONS WERE 42% SATURATED AMMONIUM SULFATE, PH 6.8., vapor diffusion
Crystal Properties
Matthew coefficientSolvent content
2.855.9

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.5α = 90
b = 88.2β = 90
c = 94.2γ = 90
Symmetry
Space GroupI 2 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293AREA DETECTORSIEMENS1996-04-04M
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
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
12.3100780.073153869737
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)
2.32.4252.60.3232

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 1GNO2.388697780.1850.18536.6
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
x_dihedral_angle_d28.5
x_angle_deg1.8
x_improper_angle_d1.7
x_bond_d0.013
x_dihedral_angle_d_prot
x_angle_d_na
x_angle_d
x_angle_deg_na
x_angle_deg_prot
x_bond_d_na
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d28.5
x_angle_deg1.8
x_improper_angle_d1.7
x_bond_d0.013
x_dihedral_angle_d_prot
x_angle_d_na
x_angle_d
x_angle_deg_na
x_angle_deg_prot
x_bond_d_na
x_dihedral_angle_d_na
x_angle_d_prot
x_bond_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1528
Nucleic Acid Atoms
Solvent Atoms59
Heterogen Atoms42

Software

Software
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
SAINTdata reduction
SAINTdata scaling
X-PLORphasing