-flank_up <bp>
-flank_down <bp>: Flank requirement in basepairs (default: zero for both)
-ddG_context <bp>: Number of bases upstream and downstream for target site that are taken into account when folding the UTR (default: 70)
-prefix <string>: Add the string as a prefix to the output files (pita_results.tab and ext_utr.stab)
-gxp: Produce a gxp (Genomica project file) output file.
-l <num1-num2>: Search for seed lengths of num1,...,num2 to the MicroRNA (default: 6-8)
-gu <nums>: Lengths for which G:U wobbles are allowed and number of allowed wobbles. Format of nums: <length;num G:U>,<length;num G:U>,... (default: 6;0,7;1,8;1)
-m <nums>: Lengths for which mismatches are allowed and number of allowed mismatches Format of nums: <length;num mismatches>,<length;num mismatches>,...(default: 6;0,7;0,8;1)
-loop <nums>: Lengths for which a single loop in either the target or the microrna is allowed. Format of nums: <length>,<length>,... (default: none)