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STRUCTURE OF BACTERIORHODOPSIN AT 3.0 ANGSTROM DETERMINED BY ELECTRON CRYSTALLOGRAPHY
Crystallization Crystal Properties Matthews coefficient Solvent content 4.23 71
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 62.45 α = 90 b = 62.45 β = 90 c = 100 γ = 120
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 electron 1992-04-01
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Free (Depositor) Mean Isotropic B ELECTRON CRYSTALLOGRAPHY 2.8
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]
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1778 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 20
Software Software Software Name Purpose X-PLOR model building X-PLOR refinement X-PLOR phasing
Specimen Preparation Sample Aggregation State 2D ARRAY Vitrification Instrument REICHERT-JUNG PLUNGER Cryogen Name ETHANE Sample Vitrification Details delay of 10 seconds before rapid freezing Embedding Material trehalose Embedding Details 3% trehalose
3D Reconstruction Reconstruction Method CRYSTALLOGRAPHY Number of Particles Reported Resolution (Å) 2.8 Resolution Method DIFFRACTION PATTERN/LAYERLINES Other Details Refinement Type Symmetry Type 2D CRYSTAL
Data Acquisition Detector Type GENERIC GATAN (2k x 2k) KODAK SO-163 FILM Electron Dose (electrons/Å**2) 10 10
Imaging Experiment 1 2 Date of Experiment Temperature (Kelvin) Microscope Model JEOL 4000 JEOL 3000SFF Minimum Defocus (nm) Maximum Defocus (nm) Minimum Tilt Angle (degrees) Maximum Tilt Angle (degrees) Nominal CS Imaging Mode DIFFRACTION BRIGHT FIELD Specimen Holder Model Nominal Magnification Calibrated Magnification Source FIELD EMISSION GUN FIELD EMISSION GUN Acceleration Voltage (kV) 400 300 Imaging Details
EM Software Task Software Package Version CRYSTALLOGRAPHY MERGING CCP4 programs