8QOD

CRYSTAL STRUCTURE OF FVIIA IN COMPLEX WITH A BENZAMIDINE-BASED INHIBITOR


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelOtherin-house model

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.5293The VIIa/sTF complex was crystallized using the sitting drop or the hanging drop vapor diffusion method. Specifically, the protein drop contained 4 mg/ml VIIa/sTF complex, 20 mm Tris-HCl, pH 7.5, 200 mm NaCl, 10 mm CaCl2, and 10 mm pAB or 10 mm benzamidine, whereas the reservoir solution contained 16-22% PEG 4000, 100 mm MgCl2, and 20 mm BisTris, pH 6.5. Drops were prepared by mixing 2 ul of protein solution with 2 ul of reservoir solution at 20 C. Crystals appeared within 7 days and were allowed to grow up to 14-20 days before being flash-frozen without additional cryoprotectant.
Crystal Properties
Matthews coefficientSolvent content
2.6754

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 69.811α = 90
b = 81.51β = 90
c = 125.498γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42004-03-11MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-20.933000ESRFID14-2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
11.57368.35775.40.0410.04121.64.375314
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.5731.71516.80.5820.5820.611.52.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 REPLACEMENTTHROUGHOUT1.57322.8875288378275.40.18320.18150.2143RANDOM28.84
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]
-0.22410.3759-0.1518
RMS Deviations
KeyRefinement Restraint Deviation
t_other_torsion15.5
t_omega_torsion4.13
t_angle_deg0.97
t_bond_d0.008
t_dihedral_angle_d
t_gen_planes
t_it
t_chiral_improper_torsion
t_sum_occupancies
t_ideal_dist_contact
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4694
Nucleic Acid Atoms
Solvent Atoms1092
Heterogen Atoms63

Software

Software
Software NamePurpose
BUSTERrefinement
autoPROCdata reduction
XDSdata reduction
autoPROCdata scaling
Aimlessdata scaling
STARANISOdata scaling
PHASERphasing