3TH2

Mg2+ Is Required for Optimal Folding of the Gamma-Carboxyglutamic Acid (Gla) Domains of Vitamin K-Dependent Clotting Factors At Physiological Ca2+


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2A2QPDB ENTRY 2A2Q

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1729820% PEG 4000, 50 mM Tris-HCL, 50 mM N-(2-Acetamido)iminodiacetic acid, 150 mM NaCl, 5 mM Calcium Chloride, 2.5 mM Magnesium Chloride, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Crystal Properties
Matthews coefficientSolvent content
2.6453.41

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 69.94α = 90
b = 80.874β = 90
c = 126.43γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray200CCDADSC QUANTUM 3152005-07-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.2.2ALS8.2.2

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
11.7261.296.30.0660.04718.283.7737192

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 2A2Q1.7261.2270024369596.20.1910.1890.233RANDOM24.05
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
r_dihedral_angle_2_deg32.902
r_dihedral_angle_4_deg20.785
r_dihedral_angle_3_deg15.364
r_dihedral_angle_1_deg7.136
r_scangle_it5.552
r_scbond_it3.475
r_mcangle_it2.464
r_angle_refined_deg2.112
r_mcbond_it1.455
r_chiral_restr0.173
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.902
r_dihedral_angle_4_deg20.785
r_dihedral_angle_3_deg15.364
r_dihedral_angle_1_deg7.136
r_scangle_it5.552
r_scbond_it3.475
r_mcangle_it2.464
r_angle_refined_deg2.112
r_mcbond_it1.455
r_chiral_restr0.173
r_bond_refined_d0.026
r_gen_planes_refined0.012
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4706
Nucleic Acid Atoms
Solvent Atoms586
Heterogen Atoms42

Software

Software
Software NamePurpose
ADSCdata collection
AMoREphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling