2ZW3

Structure of the connexin-26 gap junction channel at 3.5 angstrom resolution


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.527716-18% PEG 200, 0.1M Sodium phosphate, 0.1M Sodium chloride, 0.01M DTT , pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
4.270.72

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 167.617α = 90
b = 111.245β = 114.04
c = 155.387γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDBruker DIP-60402007-05-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSPRING-8 BEAMLINE BL44XU0.9000SPring-8BL44XU

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
13.514194.10.0850.08526.111.2330853113893.594
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
3.53.6394.90.3780.3783.15.93266

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 DIFFRACTIONMIRTHROUGHOUT3.52229595156594.60.337550.33680.35123RANDOM137.197
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]
3.742.231.57-3.49
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.025
r_dihedral_angle_3_deg21.837
r_scangle_it9.088
r_dihedral_angle_4_deg7.672
r_scbond_it6.161
r_dihedral_angle_1_deg6.118
r_mcangle_it5.434
r_mcbond_it2.717
r_angle_refined_deg1.352
r_symmetry_vdw_refined0.364
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.025
r_dihedral_angle_3_deg21.837
r_scangle_it9.088
r_dihedral_angle_4_deg7.672
r_scbond_it6.161
r_dihedral_angle_1_deg6.118
r_mcangle_it5.434
r_mcbond_it2.717
r_angle_refined_deg1.352
r_symmetry_vdw_refined0.364
r_nbtor_refined0.329
r_nbd_refined0.289
r_symmetry_hbond_refined0.23
r_xyhbond_nbd_refined0.196
r_chiral_restr0.106
r_bond_refined_d0.012
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms9834
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
SHARPphasing