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9 votes
10 answers
25k views

Remove/delete sequences by ID from multifasta

I have a fasta file like this: >Id1 ATCCTT >Id2 ATTTTCCC >Id3 TTTCCCCAAAA >Id4 CCCTTTAAA I want to delete sequences that have the following IDs. <...
andresito's user avatar
  • 385
22 votes
10 answers
7k views

What is the fastest way to calculate the number of unknown nucleotides in FASTA / FASTQ files?

I used to work with publicly available genomic references, where basic statistics are usually available and if they are not, you have to compute them only once so there is no reason to worry about ...
Kamil S Jaron's user avatar