3FNS

Crystal structure of histo-aspartic protease (HAP) from Plasmodium Falciparum


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.529310% PEG 3000, 0.2M Zinc acetate, 0.1M sodium acetate pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.6854.02

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 89.8α = 90
b = 89.8β = 90
c = 198.7γ = 90
Symmetry
Space GroupP 41 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 300 mm CCD2008-02-14MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 22-ID0.99999APS22-ID

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
12.54099.70.0939.52897328895
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)
2.52.699.60.8223.19.73120

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 REPLACEMENTTHROUGHOUT2ANL2.530280188661000.2260.2250.274RANDOM51.33
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]
0.720.72-1.44
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg38.296
r_dihedral_angle_3_deg21.429
r_dihedral_angle_4_deg18.644
r_dihedral_angle_1_deg7.04
r_scangle_it3.004
r_scbond_it1.747
r_angle_refined_deg1.553
r_mcangle_it1.477
r_mcbond_it0.778
r_chiral_restr0.109
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg38.296
r_dihedral_angle_3_deg21.429
r_dihedral_angle_4_deg18.644
r_dihedral_angle_1_deg7.04
r_scangle_it3.004
r_scbond_it1.747
r_angle_refined_deg1.553
r_mcangle_it1.477
r_mcbond_it0.778
r_chiral_restr0.109
r_bond_refined_d0.013
r_gen_planes_refined0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5182
Nucleic Acid Atoms
Solvent Atoms104
Heterogen Atoms6

Software

Software
Software NamePurpose
MAR345data collection
MrBUMPphasing
REFMACrefinement
XDSdata reduction
XDSdata scaling