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titan_to_process

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Pre-processing of dataset from Titan II

Recover the dataset from the microscope

Log into cbi-gateway-01 to access the microscope and transfer the data to gateway or storage

ssh <login>@cbi-gateway-01
ls /mnt/titan2/offloaddata/TemScripting/EF-Falcon/<dataset>
rsync -avz --progress /mnt/titan2/offloaddata/TemScripting/EF-Falcon/<dataset> /mnt/storage/teams/lamour-ruff/Top2-G4/<dataset>

Path to gateway as seen from cbi-gateway-01 :

/mnt/zfspool/teams/

Convert the EER movies to TIF

Log into cbi-compute-01 and transfer the scripts eer2tif_parallel_loop.py, eer2tif_parallel.py and eer2tif.py in your home

ssh <login>@cbi-compute-01
module load relion
cd /mnt/storage/teams/lamour-ruff/<project>/<dataset>/ #go to the folder with the dataset
module load python
python ~/eer2tif_parallel.py

Warning : conversion of eer to tiff file will show error this message : TIFFReadDirectory: Warning, Unknown field with tag 65002 (0xfdea) encountered.

Begin processing with relion

Load and start relion (from cbi-compute-01 of phantom-node39)

module load relion
relion& #start relion in the folder with movies

Job Relion/Import

Give the path to the *.tif , specify the pixel size, voltage and hit RUN You can REMUSE the job when more movies are transferred and converted

Estimation the camera gain

Estimate the gain with at least 200 movies (redo if needed with a lager number

relion_estimate_gain --i Import/job001/movies.star --j 8 --o estimated_gain.mrc

Job Relion/Motion correction

Specify the dose per frame, the number of patches 5x5m, provide the gain file, and set 20 threads

titan_to_process.1706888364.txt.gz · Last modified: by Luc Bonnefond