ELECTRON MICROSCOPY

Sample

SINGLE CHAIN FV ANTIBODY DOMAIN BOUND TO THE ENZYME BETA-GALACTOSIDASE

Specimen Preperation
Sample Aggregation State PARTICLE
Vitrification Instrument ?
Cryogen Name ETHANE
Sample Vitrification Details VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 100, TEMPERATURE- 100, INSTRUMENT- OTHER, METHOD- BLOT FOR 10-20 SECONDS UNTIL DIAMETER OF BLOTTED MENISCUS CEASES TO EXPAND, BEFORE PLUNGING.
3D Reconstruction
Reconstruction Method SINGLE PARTICLE
Number of Particles 2965
Reported Resolution (Å) 13
Resolution Method ?
Other Details FREALIGN MAP OBTAINED FROM 2965 PARTICLES USING D2 SYMMETRY THIS IS A MODEL MADE BY DOCKING TWO ATOMIC MODELS AS RIGID BODIES INTO A 13 ANGSTROM RESOLUTION DENSITY MAP. SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2548. (DEPOSITION ID: 12230).
Refinement Type
Symmetry Type POINT
Map-Model Fitting and Refinement
ID 1
Refinement Space REAL
Refinement Protocol RIGID BODY FIT
Refinement Target FSC CURVE BETWEEN MAP AND MODEL
Overall B Value ?
Fitting Procedure ?
Details METHOD--RIGID BODY REFINEMENT PROTOCOL--X-RAY
Data Acquisition
Detector Type FEI FALCON II (4k x 4k)
Electron Dose (electrons/Å2) 67
Imaging Experiment
Date of Experiment 2012-08-02
Temprature (Kelvin)
Microscope Model FEI POLARA 300
Minimum Defocus (nm) 2678
Maximum Defocus (nm) 4027
Minimum Tilt Angle (degrees) ?
Maximum Tilt Angle (degrees) ?
Nominal CS 2.0
Imaging Mode BRIGHT FIELD
Specimen Holder Model .
Nominal Magnification 59000
Calibrated Magnification 81600
Source FIELD EMISSION GUN
Acceleration Voltage (kV) 300
Imaging Details EXPOSURE INTENSITY SET TO GIVE 50 ELECTRONS PER PIXEL PER SECOND AT THE DETECTOR. THIS TRANSLATES INTO 16 ELECTRONS PER SQUARE ANGSTROM PER SECOND AT THE SPECIMEN.
Imaging Experiment
Task Software Package Version
CTF CORRECTION CTFFIND 3
MODEL FITTING UCSF Chimera ?
RECONSTRUCTION FREALIGN ?
RECONSTRUCTION MRC IMAGE PROCESSING PACKAGE ?
Image Processing
CTF Correction Type CTF Correction Details Number of Particles Selected Particle Selection Details
? DONE INSIDE FREALIGN
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