Selection of a sequence region is synchronized between different Sequence View components.
Selection in the Sequence View components
In the Sequence Overview the selection is displayed as a blue line:
![](/wiki/download/attachments/20880218/Selecting Sequence Region.png)
In the Zoom View a blue line with coordinates and the length of the selected region is shown:
![](/wiki/download/attachments/20880218/Selecting Sequence Region_1.png)
In the Details View a rectangle with a dashed border is shown around the selected region:
![](/wiki/download/attachments/20880218/Selecting Sequence Region_2.png)
Finally, when one selects an annotation in the Annotations Editor, the corresponding region is also selected in the other components and visa versa.
Selecting a region using the mouse
It is possible to select a region of a sequence using the mouse in each component of the Sequence View.
In the Zoom View and the Details View tit can be adjusted by dragging the left or the right border of the selection:
![](/wiki/download/attachments/20880218/Selecting Sequence Region_3.png)
Selecting a region using the dialog
If the region coordinates are known, to select it click the Select sequence region button in the context menu of the Sequence View. The Region Selection dialog appears: on the toolbar, choose Select–>Sequence region
![](/wiki/download/attachments/20880218/Selecting Sequence Region_5.png)
It is possible to choose:
- Single Range Selection — a common region with a single range. Use the Min and Max buttons to set up the beginning and the end of the sequence.
- Multiple Range Selection — a region consists of several join elements. For example, this may be exons. See "The DDBJ/ENA/GenBank Feature Table Definition" for details.
Selecting a region around or between annotations
To select a region between two annotations, for example, an intron region between two exons:
- Click on the annotations, holding the Ctrl/Cmd key:
![](/wiki/download/attachments/20880218/Selecting Sequence Region_6.png)
- Click Select–>Sequence between selected annotations in the context menu of the Sequence View.
To select a region that contains both annotations, choose the Sequence around selected annotations item in the menu.