Crystal Structure of FN3(6847): A Thermally Enhanced FN3 Variant Designed Using AI and Screened via ThermalFold


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFold 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1EVAPORATION62934%PEG400, 0.1M_NaOAc-HOAc_pH6.0
Crystal Properties
Matthews coefficientSolvent content
2.4850.33

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 75.68α = 90
b = 75.68β = 90
c = 31.51γ = 120
Symmetry
Space GroupP 61

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2024-11-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRF BEAMLINE BL18U10.97853SSRFBL18U1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)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
11.4422.793.10.99815.614.917590
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.441.4959.10.5811.8

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-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1.4421.851.351759088593.170.16710.16590.16640.18960.1894
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_d14.307
f_angle_d0.89
f_chiral_restr0.079
f_plane_restr0.011
f_bond_d0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms761
Nucleic Acid Atoms
Solvent Atoms95
Heterogen Atoms26

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata scaling
XDSdata reduction
PHASERphasing
PDB_EXTRACTdata extraction