2WLJ

Potassium channel from Magnetospirillum magnetotacticum


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1P7BPDB ENTRY 1P7B

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.629390MM HEPES, 2.5% PEG 8000, 2.5% PEG 4000, 20% PEG 400, 12.5MM MAGNESIUM CHLORIDE, 42.5MM MAGNESIUM ACETATE, 2.5% GLYCEROL, 14MM HEGA-10, PH 7.6, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K
Crystal Properties
Matthews coefficientSolvent content
3.865

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 105.627α = 90
b = 109.385β = 90
c = 88.786γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray MSINGLE WAVELENGTH

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.62629551

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-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)R-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1P7B2.61527897152591.580.221480.220280.220.243310.24RANDOM78.133
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]
0.570.87-1.44
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg30.239
r_dihedral_angle_4_deg16.804
r_dihedral_angle_3_deg16.305
r_dihedral_angle_1_deg5.821
r_scangle_it5.209
r_mcangle_it5.083
r_mcbond_it3.334
r_scbond_it3.128
r_angle_refined_deg1.477
r_chiral_restr0.092
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4331
Nucleic Acid Atoms
Solvent Atoms173
Heterogen Atoms20

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
CNSphasing