Upload your spacers dictionary. The spacers dictionary is an excel formatted file with a specific format (see an exemple here). A dictionary, containing the spacers identified in the submitted sequences, will be created by the program if you dont specify any at this stage.
Enter CRISPRs sequences (fasta formatted) from which your want to compar the spacers arrangement. The sequences are supposed to contains allelic CRISPRs.
Submit excel dictionary and txt file of sequences