Skews from custom sequences

Name of sequence:
Copy sequence in the textarea below (up to 5,000,000 bp):

Window size or bases(100-50000)

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