Crystal structure of the Caenorhabditis elegans telomeric POT-1-TEBP-1 complex interface


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
in silico modelAlphaFoldAF-P42001-F1used only part of the model, from amino acids 1-171

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.75289SeMet-substituted complex (17 mg/ml) was mixed 1:1 with the well solution 100 mM MES (pH 6.75), 100 mM NaCl, and 8% PEG 3350. Crystals were harvested in 20 mM Tris (pH 8.0), 100 mM MES (pH 6.5), 200 mM NaCl, 10% PEG 3350, and cryoprotected in harvesting solution with 35% ethylene glycol
Crystal Properties
Matthews coefficientSolvent content
2.3447.36

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 73.799α = 90
b = 39.81β = 97.027
c = 103.941γ = 90
Symmetry
Space GroupI 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER2 X 9M2021-09-27MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 21-ID-D0.97158APS21-ID-D

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
11.4763.596.50.0850.99710.26.79466919.5
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.471.50.6030.878

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-VALUE1.4851.581.3694642466895.70.18470.18330.18340.21070.209929.91
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_d13.2098
f_angle_d0.8295
f_chiral_restr0.0724
f_bond_d0.006
f_plane_restr0.0057
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2203
Nucleic Acid Atoms
Solvent Atoms321
Heterogen Atoms

Software

Software
Software NamePurpose
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
AutoSolphasing
PHENIXrefinement
Cootmodel building