Sequality

Sequence editor

Open and edit

Sequences lists "Saved sequences, most recently changed first" and the sequences you have open. Choose a saved sequence, or New sequence. "Twelve sequences are open, the most the editor holds. Close one to open another."

Each open sequence has a Name and a Sequence: "Residue letters only. Spaces, line breaks and lower case are not changes to the sequence. A first line starting with > is taken as the name."

The Sequences page, the current destination in the sidebar, with two saved sequences and one open: the name and sequence fields, the Normalise menu, the cursor position, the automatic classification with the Declare the type choice, the composition table and GC content, the position ruler, the Cut a fragment and Transform controls, and Save, Search this sequence and Delete.
A nucleotide sequence open in the editor. Screenshot of the product's test fixtures: placeholder records and patent numbers, not search results.

As you type, the editor shows the cursor position, the length, the composition, and for a nucleotide sequence its GC content. It classifies the sequence as nucleotide or protein from its letters, by the same rules a search uses. Declare the type overrides that: Automatic, Nucleotide or Protein. Characters a search would refuse are marked, and the editor says: "This sequence cannot be searched as it stands; the search would refuse it."

Normalise

Normalise offers Upper case, Remove spaces and line breaks, Remove digits, Remove other characters and Convert three-letter codes. Each can be undone. A FASTA header line is taken as the name; Undo taking the header line reverses that. "This text holds more than one FASTA record; the editor holds one sequence at a time."

Fragments and transforms

Save and Save as a new sequence keep a sequence in your library. Saved residues never change: an edit saves a new sequence, and saving the same request twice saves it once. Search this sequence opens New search with the sequence filled in. Delete removes a sequence from your saved sequences: "It leaves your saved sequences and cannot be restored. A copy open in the editor stays open as an unsaved sequence."

A supervisor views saved sequences read-only.

Limits