2HFE

Rb+ complex of a K channel with an amide to ester substitution in the selectivity filter


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.529520-25% PEG400, 50 mM Magnesium Acetate, 0.3M RbCl, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 295K
Crystal Properties
Matthew coefficientSolvent content
4.0269.42

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 156.142α = 90
b = 156.142β = 90
c = 75.794γ = 90
Symmetry
Space GroupI 4

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152005-07-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X251.1NSLSX25

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (Observed)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
12.2510098.90.07921.14.54303627.5
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.252.3399.90.4623.574.44327

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2.2526.784303642966215598.90.2320.251RANDOM52.2
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]
8.158.15-16.3
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d26.2
c_scangle_it2.91
c_mcangle_it2.4
c_scbond_it1.97
c_angle_deg1.7
c_mcbond_it1.45
c_improper_angle_d1.12
c_bond_d0.014
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4042
Nucleic Acid Atoms
Solvent Atoms100
Heterogen Atoms30

Software

Software
Software NamePurpose
CNSrefinement
PDB_EXTRACTdata extraction
MOLREPphasing