The Pfam protein sequence page, showing the DAS annotation viewer. Various tracks can be selected using the check boxes beneath the annotation view, allowing the user to view features derived from any of the listed DAS sources. For instance, in the example displayed, the membrane topology calculated by Phobius () can be viewed alongside the Pfam domain annotations and those from a variety of different domain databases. The figure shows a tool-tip for one feature, which gives the details of the annotation and, in this case, highlights the link to further information.