The functionality of the Sequence View can be significantly increased with Sequence View Extensions. Below is the demonstration its functionality.
The Circular Viewer shows the circular view of a sequence:
The 3D Structure Viewer adds 3D visualization for PDB and MMDB files:
The Chromatogram Viewer adds support for chromatograms visualization and editing:
The DNA Graphs Package shows various graphs for sequences:
The Dotplot provides a tool to build dotplots for DNA or RNA sequences.
A number of other instruments add graphical interface for popular sequence analysis methods:
For details see the next sections of the documentation: