7EKA

crystal structure of epigallocatechin binding with alpha-lactalbumin


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1EVAPORATION2932000 mM ammonium sulfate, 100 mM sodium citrate buffer (pH 5.5)
Crystal Properties
Matthews coefficientSolvent content
2.9658.46

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 69.344α = 90
b = 69.344β = 90
c = 59.553γ = 120
Symmetry
Space GroupP 64

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray90PIXELPSI JUNGFRAU 16M2020-05-21MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRF BEAMLINE BL19U10.9779SSRFBL19U1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)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
11.24094.30.0670.0710.02311.59.650847
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.371.483.90.220.2350.0810.9678.2

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-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1ALC1.221.211.3750846199999.990.16860.16830.1763
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
f_dihedral_angle_d6.71
f_angle_d1.848
f_chiral_restr0.095
f_plane_restr0.012
f_bond_d0.008
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms975
Nucleic Acid Atoms
Solvent Atoms185
Heterogen Atoms22

Software

Software
Software NamePurpose
PHENIXrefinement
HKL-3000data collection
HKL-3000data scaling
PHENIXmodel building
PHENIXphasing
HKL-3000data reduction