Changes between Initial Version and Version 1 of LEGACY - Collection Protocol amendments for DNA processing


Ignore:
Timestamp:
12/01/11 15:48:45 (12 years ago)
Author:
Nick Holden
Comment:

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  • LEGACY - Collection Protocol amendments for DNA processing

    v1 v1  
     1= DNA Processing =
     2
     3BRICCS Collection Protocol v1 did not contain any reference to DNA processing. For the initial period of the study, an Access database has been used to record the data. But the data should be held in caTissue.
     4
     5We need to amend the caTissue procedures to collect the date in future, and also write a script for bulk upload of historic data to the catissue database.
     6
     7== Manual process ==
     8
     91 buffy coat aliquot per participant is stored in the freezer.
     10
     11Remove the sample - RECORD THAW EVENT
     12DNA extraction - in catissue this is represented as a derived specimen
     13DNA is aliquoted x 5 (1 x 50ul plus 4 x 210ul)
     14Aliquots stored
     15The 4 210ul aliquots are stored in the -20 freezers (5 (aliquots 2 and 3) and 6 (aliquots 4 and 5) )
     16RECORD FREEZE EVENT
     17Aliquot 1 is stored in a fridge (4 wide, by 3 high by 3 deep) ??? maybe put racks in
     18Aliquot is processed in the nanodrop: produces data for 'A260' 'A280' and 'ng/ul concentration' - these values should apply to all five aliquots, even though they are calculated from one aliquot. Allocate them to the intermediate parent sample and have them propagate.
     19Aliquot is returned to the fridge.
     20
     21
     22== TO DO ==
     23
     24Create new storage type (-20 freezer) 16 racks high x 3 wide
     25Create new storage type racks for -20 (4 positions deep)
     26Standard 96 well boxes for DNA 0.5ml 2d barcoded tubes
     27Create new storage locations (freezer5 and freezer 6) (racks)
     28
     29Amend protocol to include events and processes as above
     30
     31Create a bulk upload process to upload output of Access database
     32
     33Create an addition to the BRICCS API client to process the above activity, one for the DNA generation, one for the locating of the samples into the freezers.