Note: Click Next (top right hand corner) to navigate through this chapter. Headings are listed on the left hand side (web version) or by clicking the Contents button on the left-hand-side of the help window in the graphical user interface.

There will be many occasions when you will have to make selections. For example, if you only wish part of your structure to be displayed or if you want to select residues around a binding pocket. If you have a molecule displayed in the graphics window, then selections will be displayed as green crosses. The selection you have made is also displayed at the top of the ICM Workspace. It is always a good idea to keep an eye on what is selected and what isnt.

There are four basic levels of selection

1. Object (eg a PDB structure or ICM object)
2. Molecule
3. Residue
4. Atom

You can make selections in:

• The Graphics Display
• The ICM Workspace (Selections are highlighted in blue)
• Tables
• Alignments