8C3E

Engineered mini-protein LCB2 (blocking ligand of SARS-Cov-2 spike protein)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFold 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.82910.1M Sodium acetate ph4.8, 50mM Ammonium Sulfate, 5% PEG4000
Crystal Properties
Matthews coefficientSolvent content
3.0760

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 57.817α = 90
b = 57.817β = 90
c = 41.54γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELRIGAKU HyPix-6000HE2022-07-07MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SEALED TUBERIGAKU PhotonJet-S1.54184

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)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
12.150.0799.90.1560.1640.0510.99671610.24881
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)
12.1052.1411000.610.6410.1940.859410.7

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-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE2.150.0718.47488152199.90.22020.2110.245611.15
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_d9.7832
f_angle_d0.3617
f_chiral_restr0.0292
f_plane_restr0.0029
f_bond_d0.0019
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms463
Nucleic Acid Atoms
Solvent Atoms24
Heterogen Atoms18

Software

Software
Software NamePurpose
CrysalisProdata collection
autoPROCdata processing
autoPROCdata reduction
autoPROCdata scaling
PHENIXphasing
PHENIXrefinement