Skews from custom sequences

This is a demo: sequence is limited to 20,000 bases and maximum length of oligonucleotides is 3 (trinucleotides)
Name of sequence:
Copy sequence in the textarea below (up to 20,000 bp in this demo):

Window size or bases(100-2000)

Show G+C %
Show GC-skew
Show AT-skew
Show KETO-skew
Show oligo-skew for in
Show subsequence: from to
Info
This is simplified script extracted from the online tool at insilico.ehu.es/oligoweb/skews/.
GC-, AT- and oligo-skews images for all sequenced bacterial genomes are available here

Source code is available at BioPHP.org