1BYW

STRUCTURE OF THE N-TERMINAL DOMAIN OF THE HUMAN-ERG POTASSIUM CHANNEL


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
17PROTEIN SOLUTION AT 10MG/ML IN 10MM DTT, 5 MM N-OCTYL-GLUCO MIXED WITH EQUAL VOLUME OF 100 MM HEPES PH 7.0, 0.8-1.0 M SODIUM AND POTASSIUM TARTRAT
Crystal Properties
Matthews coefficientSolvent content
2.4925

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 56.1α = 90
b = 56.1β = 90
c = 135.5γ = 120
Symmetry
Space GroupP 65 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMMAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONCHESS BEAMLINE F20.9793, 0.97896, 0.973CHESSF2

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
12.61395.80.0923474131
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)
2.62.787.90.35452.5

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMADTHROUGHOUT2.61324146586970.2520.2520.286RANDOM33.2
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]
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d26.42
x_mcangle_it2.032
x_scangle_it1.831
x_scbond_it1.119
x_mcbond_it1.098
x_angle_deg0.833
x_improper_angle_d0.455
x_bond_d0.004
x_angle_deg_prot
x_bond_d_na
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d26.42
x_mcangle_it2.032
x_scangle_it1.831
x_scbond_it1.119
x_mcbond_it1.098
x_angle_deg0.833
x_improper_angle_d0.455
x_bond_d0.004
x_angle_deg_prot
x_bond_d_na
x_dihedral_angle_d_na
x_angle_d_na
x_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
x_angle_d
x_bond_d_prot
x_angle_deg_na
x_dihedral_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms814
Nucleic Acid Atoms
Solvent Atoms27
Heterogen Atoms

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CCP4model building
X-PLORrefinement
CCP4phasing