7LJA

Human TRAAK K+ channel FHEIG mutant A198E in a Tl+ bound conductive conformation


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 7LJ5 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.827750mM Tris pH 8.8, 64-200 mM CaCl2, 27-33% (vol/vol) PEG400
Crystal Properties
Matthews coefficientSolvent content
3.2862.54

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 80.23α = 90
b = 136.53β = 94.54
c = 95.28γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray77PIXELDECTRIS EIGER2 X 16M2019-10-29MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 24-ID-C0.9778APS24-ID-C

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
12.7747.5493.40.9959.827.735508
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)
12.773.02119.563.3763.4380.6480.58121.33814.03

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 REPLACEMENTTHROUGHOUT7LJ52.7747.5433755175568.590.20340.20120.2434RANDOM76.01
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]
1.39-0.392.65-3.93
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.49
r_dihedral_angle_3_deg16.057
r_dihedral_angle_4_deg15.787
r_dihedral_angle_1_deg7.375
r_angle_refined_deg1.59
r_angle_other_deg1.239
r_chiral_restr0.061
r_bond_refined_d0.01
r_gen_planes_refined0.006
r_bond_other_d0.001
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.49
r_dihedral_angle_3_deg16.057
r_dihedral_angle_4_deg15.787
r_dihedral_angle_1_deg7.375
r_angle_refined_deg1.59
r_angle_other_deg1.239
r_chiral_restr0.061
r_bond_refined_d0.01
r_gen_planes_refined0.006
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms10403
Nucleic Acid Atoms
Solvent Atoms237
Heterogen Atoms11

Software

Software
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
XSCALEdata scaling
REFMACphasing