7NFN

A heptameric barrel state of a de novo coiled-coil assembly: CC-Type2-(LaId)4-L21N-I24N.


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8.5292After 1:1 dilution with the peptide solution, the resulting conditions were 100 mM magnesium chloride hexahydrate, 50 mM 2-amino-2-(hydroxymethyl)propane-1,3-diol (TRIS) and 1.7 M 1,6-hexanediol.
Crystal Properties
Matthews coefficientSolvent content
2.5952.52

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 47.898α = 67.39
b = 47.91β = 67.49
c = 62.277γ = 77.73
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER2 XE 16M2019-10-12MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I040.9795DiamondI04

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
11.4544.1695.90.0510.060.0320.99810.63.57998816.22
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)
11.451.4786.60.6430.7830.440.7151.63

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTmodel helices1.4544.1675966397595.810.13590.13380.1777RANDOM21.324
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]
0.750.45-0.011.51-0.65-1.64
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.189
r_dihedral_angle_4_deg13.356
r_dihedral_angle_3_deg13.126
r_dihedral_angle_1_deg3.726
r_rigid_bond_restr2.988
r_angle_refined_deg1.666
r_angle_other_deg1.595
r_chiral_restr0.098
r_bond_refined_d0.013
r_gen_planes_refined0.008
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.189
r_dihedral_angle_4_deg13.356
r_dihedral_angle_3_deg13.126
r_dihedral_angle_1_deg3.726
r_rigid_bond_restr2.988
r_angle_refined_deg1.666
r_angle_other_deg1.595
r_chiral_restr0.098
r_bond_refined_d0.013
r_gen_planes_refined0.008
r_gen_planes_other0.002
r_bond_other_d0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3232
Nucleic Acid Atoms
Solvent Atoms378
Heterogen Atoms56

Software

Software
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
DIALSdata reduction
Aimlessdata scaling
xia2data scaling
PHASERphasing