We try to generate abstract secondary structure of RNA sequence through GraphProt. The command we use is “perl fasta2shrep_gspan.pl -wins 150 -shift 25 -abstr -abstr-out A.txt -fasta A.fa -t 1 -M 3 -c 10 -vp”. But it doesn't seem right. We want to consider 150 nucleotides from both sides of the viewpoint area. Thanks.