8ZXI | pdb_00008zxi

Peptide channel interactions in the truncated VhChiP nanopore


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 7EQM 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP292The final and optimized condition, which yielded substantial crystals, was identified as consisting of 0.1M magnesium nitrate hexahydrate, 0.05M magnesium acetate tetrahydrate, 0.1M sodium citrate at a pH of 6.5, and 20% w/v PEG 1500.
Crystal Properties
Matthews coefficientSolvent content
3.4864.7

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 85.085α = 90
b = 182.602β = 90
c = 196.808γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray110CCDMARMOSAIC 300 mm CCDLN2-Cooled Fixed-Exit Double Crystal Si(111) Monochromator , A Pair of K-B Focusing Mirrors2020-08-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSRRC BEAMLINE TPS 05A0.97NSRRCTPS 05A

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)Rrim I (All)Rpim I (All)CC (Half)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
12.72099.10.3310.0890.92514.213.68438241.22
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.72.7597.31.7871.9060.6450.5047.2

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-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTNONE3.1219.871.3554792272299.330.1980.1950.1970.25190.2533
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
f_dihedral_angle_d7.826
f_angle_d1.113
f_chiral_restr0.062
f_bond_d0.01
f_plane_restr0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms15294
Nucleic Acid Atoms
Solvent Atoms299
Heterogen Atoms124

Software

Software
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
HKL-2000data reduction
PHENIXphasing