8QQ6

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 structure

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
2.7655.4

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 70.537α = 90
b = 82.605β = 90
c = 126.367γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42004-07-09MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-20.933ESRFID14-2

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
11.8761.591455.80.0760.07615.54.734451
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.872.11990.8260.8260.9390.4390.7241.74.3

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 REPLACEMENTTHROUGHOUT1.8719.9434391160355.80.19530.19210.2592RANDOM40.48
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]
-0.50790.604-0.0961
RMS Deviations
KeyRefinement Restraint Deviation
t_other_torsion17.13
t_omega_torsion3.47
t_angle_deg1.01
t_bond_d0.008
t_dihedral_angle_d
t_gen_planes
t_it
t_chiral_improper_torsion
t_ideal_dist_contact
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4687
Nucleic Acid Atoms
Solvent Atoms704
Heterogen Atoms58

Software

Software
Software NamePurpose
BUSTERrefinement
XDSdata reduction
STARANISOdata scaling
PHASERphasing