Here is a sample session with acdtable % acdtable antigenic Standard (Mandatory) qualifiers Allowed values Default [-sequence](Parameter 1) Protein sequence(s) filename and optional format, or reference (input USA) Readable sequence(s) Required -minlen Minimum length of antigenic region Integer from 1 to 50 6 [-outfile](Parameter 2) Output report file name Report output file <*>.antigenic Additional (Optional) qualifiers Allowed values Default (none) Advanced (Unprompted) qualifiers Allowed values Default (none)