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High resolution structure of a fish aquaporin reveals a novel extracellular fold.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1J4N
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 277.15 reservoir solution: 0.3M Lithium sulfate, 0.1M ADA (pH 6.5), 30% v/v PEG 400. Prior to setting up the crystallization drops, 4 micro liter of the reservoir solution was mixed with 1 micro liter 30% w/v Dextran sulfate sodium salt Mr 5000. Crystallization drops were set up by mixing the reservoir/additive mixture with protein at 1:1 or 2:1 ratio and the drops were left to equilibrate against 0.5 milliliter reservoir at room temperature and crystal grew in cold room (4 degree)
Crystal Properties Matthews coefficient Solvent content 4.4 72.08
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 113.67 α = 90 b = 178.1 β = 90 c = 177.9 γ = 90
Symmetry Space Group C 2 2 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 PIXEL DECTRIS PILATUS3 6M 2016-12-04 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID30B 0.911647 ESRF ID30B
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym I (Observed) Rrim I (All) Rpim I (All) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 3.46 95.818 98.8 0.177 0.202 0.095 4.5 4.5 23598 23598 89.09
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Rrim I (All) Rpim I (All) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 3.46 3.65 97.9 0.832 0.832 0.942 0.432 0.9 4.3
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (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 DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1J4N 3.46 84.36 1.35 21164 1060 88.42 0.2721 0.2707 0.2989 0.2991 0.3203 119.4062
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 Key Refinement Restraint Deviation f_dihedral_angle_d 9.563 f_angle_d 0.704 f_chiral_restr 0.041 f_plane_restr 0.006 f_bond_d 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6438 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms
Software Software Software Name Purpose SCALA data scaling PHENIX refinement PDB_EXTRACT data extraction iMOSFLM data reduction PHASER phasing