Input FASTA file¶

FASTA file provided as input by users should be in an understandable format. Extensions of this file must be: .fasta , .fna , .fa , .mfa, .txt.
This input file should meet additional constraints:

• must be identified/named (the ID follows character “>”, and a description could be added after a space character),
• the ID should not contain special characters such as “|$%”,
• the file must contain nucleotides (not amino acids),
• the file could contain several sequences in FASTA format,
• each ID must be unique,
• the ID and the file name must not be too long (a limit of 30 is advised),
• the ID will be used for output.