2X6A

Potassium Channel from Magnetospirillum Magnetotacticum


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2WLHPDB ENTRY 2WLH

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.5SITTING DROP VAPOUR DIFFUSION, 2:1 PROTEIN:CRYSTALLANT RATIO. CRYSTALLANT: 25% PEG400 2.5% PEG4K 2.5% PEG8K 10% GLYCEROL 90MM HEPES PH 7.5 ADDITIVES: FOS-CHOLINE-ISO-11-6U (ANATRACE) NONYL MALTOSIDE (ANATRACE) FOS-CHOLINE ISO-9 (ANATRACE)
Crystal Properties
Matthews coefficientSolvent content
3.8467.98

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 107.759α = 90
b = 107.759β = 90
c = 89.242γ = 90
Symmetry
Space GroupP 4 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC CCD2009-09-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAUSTRALIAN SYNCHROTRON BEAMLINE MX2Australian SynchrotronMX2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
13.1501000.1420.113.810032-373.6
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
13.13.211000.962.914.3

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 2WLH3.144.6210.17967646496.60.22260.22010.2713
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]
5.61625.6162-11.2324
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d22.631
f_angle_d1.108
f_chiral_restr0.071
f_bond_d0.014
f_plane_restr0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2126
Nucleic Acid Atoms
Solvent Atoms1
Heterogen Atoms14

Software

Software
Software NamePurpose
PHENIXrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing