X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8277CRYSTALS OF CA(151-231) WERE GROWN AT 4C IN 4 MICROLITER SITTING DROPS CONTAINING A 1:1 MIXTURE OF PROTEIN SOLUTION (2.1 MM CA(151-231) IN 10MM TRIS (PH 8.0) AND 2 MM 2-MERCAPTOETHANOL) AND RESERVOIR SOLUTION (2.0 M AMMONIUM SULFATE), vapor diffusion - sitting drop, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.2143.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 41.98α = 90
b = 41.98β = 90
c = 88.92γ = 90
Symmetry
Space GroupP 43 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCHCOLLIMATOR1996-12-06M
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL1-5SSRLBL1-5

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.72599.60.036159307-221.1
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.71.7398.60.2325

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 DIFFRACTIONMULTI-WAVELENGTH ANOMALOUS DISPERSIONTHROUGHOUT1.725-2925496999.50.2150.2150.253RANDOM22.6
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]
1.851.85-3.69
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d20.4
x_scangle_it3.92
x_scbond_it2.41
x_mcangle_it2.12
x_mcbond_it1.31
x_angle_deg1.1
x_improper_angle_d1.01
x_bond_d0.005
x_bond_d_na
x_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d20.4
x_scangle_it3.92
x_scbond_it2.41
x_mcangle_it2.12
x_mcbond_it1.31
x_angle_deg1.1
x_improper_angle_d1.01
x_bond_d0.005
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms556
Nucleic Acid Atoms
Solvent Atoms88
Heterogen Atoms

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building
X-PLORrefinement
X-PLORphasing