7MDJ

The structure of KcsA in complex with a synthetic Fab


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.529350 mM sodium acetate/50 mM ammonium acetate, 50 mM magnesium acetate, 25% PEG 400.
Crystal Properties
Matthews coefficientSolvent content
2.7855.83

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 138.409α = 90
b = 138.409β = 90
c = 71.16γ = 90
Symmetry
Space GroupI 4

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER X 16M2021-03-28MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 24-ID-E0.9792APS24-ID-E

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
12.750.0199.90.9911.36.217621
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)
12.72.750.2

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 REPLACEMENTTHROUGHOUT6W0I2.7550.011676483299.670.20440.20130.2649RANDOM122.052
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]
0.450.45-0.91
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.5
r_dihedral_angle_3_deg23.101
r_dihedral_angle_4_deg22.931
r_dihedral_angle_1_deg9.883
r_angle_refined_deg1.753
r_angle_other_deg1.211
r_chiral_restr0.068
r_bond_refined_d0.008
r_gen_planes_refined0.007
r_bond_other_d0.002
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.5
r_dihedral_angle_3_deg23.101
r_dihedral_angle_4_deg22.931
r_dihedral_angle_1_deg9.883
r_angle_refined_deg1.753
r_angle_other_deg1.211
r_chiral_restr0.068
r_bond_refined_d0.008
r_gen_planes_refined0.007
r_bond_other_d0.002
r_gen_planes_other0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3874
Nucleic Acid Atoms
Solvent Atoms130
Heterogen Atoms4

Software

Software
Software NamePurpose
REFMACrefinement
Aimlessdata scaling
PDB_EXTRACTdata extraction
MOSFLMdata reduction
PHASERphasing