1F32

CRYSTAL STRUCTURE OF ASCARIS PEPSIN INHIBITOR-3


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7298PEG 4000, potassium fluoride, spermidine-HCl, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.0640.29

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 30.455α = 90
b = 72.717β = 101.03
c = 31.137γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMAC Science DIP-2030B1997-10-03MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU200

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
11.752099.60.05820.73133941339422.3
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)
1.751.7897.60.2632.5644

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONTHROUGHOUT1.7519.581339413394136299.50.2110.255RANDOM24.9
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]
5.760.99-2.71-3.05
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d23.9
c_scangle_it3.38
c_scbond_it2.38
c_mcangle_it2.21
c_mcbond_it1.49
c_angle_deg1.4
c_improper_angle_d1.02
c_bond_d0.01
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms995
Nucleic Acid Atoms
Solvent Atoms136
Heterogen Atoms

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing
CNSrefinement