For licensing of Pathway Tools and BioCyc by academic and government users, click here.
For licensing of Pathway Tools and BioCyc by commercial users,
To report problems with this website or one of its databases, or to request assistance, send email to .
To report problems in a particular data page on this site, click the button "Report Errors or Provide Feedback" at the bottom of the page. The resulting error report will tell us on exactly what page you encountered an error.
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To report problems with a locally installed copy of the Pathway Tools software, send email to .