3KCG

Crystal structure of the antithrombin-factor IXa-pentasaccharide complex


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1E031E03, 1RFN
experimental modelPDB 1RFN1E03, 1RFN

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.42950.25M Ammonium sulfate, 19.5% PEG 3350, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
3.1460.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 78.78α = 90
b = 88.44β = 90
c = 147.23γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152009-05-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I020.9796DiamondI02

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
11.758.8399.30.0690.0695.75.211338111258826.7
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.71.791000.580.582.23.616392

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1E03, 1RFN1.738.05112588112546567098.90.2080.2080.2080.23RANDOM33.3
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]
0.52-0.830.3
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d24.1
c_scangle_it2.94
c_mcangle_it2.09
c_scbond_it1.9
c_angle_deg1.3
c_mcbond_it1.29
c_improper_angle_d0.79
c_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5798
Nucleic Acid Atoms
Solvent Atoms667
Heterogen Atoms204

Software

Software
Software NamePurpose
PHASERphasing
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling