ELECTRON MICROSCOPY

Sample

RAT PSD-95

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument
Cryogen Name
Sample Vitrification Details
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 7854
Reported Resolution (Å) 22.9
Resolution Method ?
Other Details THE COORDINATES DEPOSITED ARE FROM A COMBINED SAXS/EM STUDY. THE DOMAINS IN THE PROTEINS (HIGH RESOLUTION STRUCTURES FROM THE PDB) ARE POSITIONED RELATIVE TO ONE ANOTHER USING A SAXS CURVE, THIS COMPOSITE STRUCTURE IS THEN FITTED INTO AN EM MAP. DOMAINS PROVIDED BY X-RAY, NMR POSITIONED BY BUNCH ( PETOUKHOV, M. V. & SVERGUN, D. I. (2005). GLOBAL RIGID BODY MODELING OF MACROMOLECULAR COMPLEXES AGAINST SMALL- ANGLE SCATTERING DATA. BIOPHYS J 89, 1237-50.) REFINEMENT SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-1761. (DEPOSITION ID: 7384).
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target ?
Overall B Value ?
Fitting Procedure ?
Details METHOD--A MAP WAS GENERATED FROM THE SAXS MODEL COORDINATES AT A RESOLUTION MATCHING THE EXPERIMENTAL MAP. T HIS CALCULATED MAP WAS FITTED INTO THE EXPERIMENTAL MAP BY MAXIMIZING THE CROSS-CORRELATION WITH THE EXPERIMENTAL MAP. THE COORDINATES WERE THEN REPLACED IN THE CALCULATED MAP TO GENERATE THE FINAL ENTRY. REFINEMENT PROTOCOL--DOCKED USING CHIMERA
Data Acquisition
Detector Type GENERIC FILM
Electron Dose (electrons/Å2) ?
Imaging Experiment
Date of Experiment ?
Temprature (Kelvin)
Microscope Model FEI TECNAI 10
Minimum Defocus (nm) 900
Maximum Defocus (nm) 2250
Minimum Tilt Angle (degrees) 0
Maximum Tilt Angle (degrees) 0.1
Nominal CS 3.6
Imaging Mode BRIGHT FIELD
Specimen Holder Model .
Nominal Magnification 43000
Calibrated Magnification ?
Source TUNGSTEN HAIRPIN
Acceleration Voltage (kV) 100
Imaging Details LOW DOSE
Imaging Experiment
Task Software Package Version
MODEL FITTING UCSF Chimera ?
RECONSTRUCTION EMAN ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
? PARAMETERS DETERMINED USING SCATTERING CURVE