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Tyler Fair edited this page Oct 14, 2019 · 5 revisions

index module

  • tmpLocation - where you want to put temporary files. FlashFry will clean-up after itself, but does generate a lot of intermediate files during indexing. Its best to put this somewhere you have plenty of space.
  • reference (required) - the input fasta reference file you'd like to discover off-target sequences in
  • database (required) - the output database file to generate
  • enzyme (optional, default to spcas9) - which enzyme to consider when making discovering sites in the reference. Options include:
    • cpf1- 24 base targets with a 5' TTTN sequence
    • spcas9 - 23 base targets with a 3' NRG (NAG/NGG) sequence
    • spcas9ngg19 - 22 base targets with a 3' NGG sequence (Horlbeck et al., Elife 2016)
    • spcas9ngg - 23 base targets with a 3' NGG sequence
    • spcas9nag - 23 base targets with a 3' NAG sequence
  • binSize (optional, default to 7) - what bin size should we use when indexing the fasta file. Originally this had a bigger effect on search speed, but now individual bins can have their own lookup tables, reducing the importance of this parameter.