8F6V | pdb_00008f6v

Crystal Structure of Nanobody VHH108 Bound to Its Antigen PA14 Cif


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3KD2 
experimental modelPreliminary structure of 8E1B

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION6.5292.8Morpheus I Condition G2 (composition by Molecular Dimensions stock solutions with catalogue numbers listed at end) 20% (v/v) ethylene glycol, 10% (w/v) PEG8000, 20 mM sodium formate, 20 mM ammonium acetate, 20 mM sodium citrate tribasic dihydrate, 20 mM potassium sodium tartrate tetrahydrate, 20 mM sodium oxamate, 100 mM imidazole/MES monohydrate (acid) pH 6.5 Stock mixtures listed below with catalogue number in brackets. 30% (v/v) Precipitant Mix 2 [MD2-100-82], 100 mM carboxylic acids mix [MD2-100-76], 100 mM Buffer System 1 pH 6.5 [MD2-100-100]
Crystal Properties
Matthews coefficientSolvent content
2.8957.41

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 98.995α = 90
b = 98.995β = 90
c = 196.987γ = 120
Symmetry
Space GroupP 61

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER X 16M2020-12-07MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS-II BEAMLINE 17-ID-20.979312NSLS-II17-ID-2

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
12.344.2399.260.086070.10340.056340.9917.362.94802849.93
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)
12.32.38299.790.78331.0040.62050.4251.282.4

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-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE3KD2, 8E1B2.344.231.3548020241799.270.18270.18130.180.20980.2157.77
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_d14.1238
f_angle_d0.9768
f_chiral_restr0.0595
f_bond_d0.0091
f_plane_restr0.008
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6554
Nucleic Acid Atoms
Solvent Atoms267
Heterogen Atoms

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing
Cootmodel building