Comments (4)
If I understand your question correctly, we include the flanking sequence (which isn't random) to the targets as many on-target evaluation methods need the context to produce a score. See https://www.nature.com/articles/nbt.3026 as an example
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Thanks @aaronmck for your prompt reply.
I saw the description from the quick start tutorial.
Now we discover candidate targets and their potential off-target in the test data (takes a few seconds). Here we're using the EMX1 target with some random sequence flanking the target site:
java -Xmx4g -jar FlashFry-assembly-1.12.jar \
discover \
--database chr22_cas9ngg_database \
--fasta EMX1_GAGTCCGAGCAGAAGAAGAAGGG.fasta \
--output EMX1.output
This confusesd me, a newcomer to this field:-).
Thanks a lot for the explanation.
One more question regarding the flanking sequence is how many bases pairs of flanking regions should be included?
Thanks again.
from flashfry.
Perhaps I did not make it clear.
In the quick start tutorial found in the main page
What confuses me is that there is a flankingSequence
option, which denotes the length of flanking sequences for a given target sequence.
This makes me think that the input should be just the 20bp sgRNA sequence and the program will evaluate/score it based on denoted length of flanking sequences.
But this is not the case, am I right?
from flashfry.
Totally, I'll update the docs. Thanks!
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