[ Atoms | Residues | Move | Variables | Sites | Annotation | Color ]

Labeling options are contained within the Labels or Display Tab. In many cases clicking and holding a label button will allow you to view more options.

5.5.1 Labeling Atoms

Select the atoms you wish to label (see display structure or selection toolbar).

• Select the display tab.
• Click the label ATOM button.

To change the level of label detail:

• Click and hold the label ATOM button and select the desired level of label detail, color or style.

5.5.2 Labeling Residues

To label residues:

• Select the display tab.
• Select the residues you wish to label (see display structure or selection toolbar).
• Click the label RES button.

To change the level of label detail:

• Click and hold the label RES button and select the desired level of label detail or style.

5.5.3 Move Residue Label

To change the location of your residue label:

• Select View/Drag res labels.
• If your mouse has a middle mouse button, then click on handle (as shown) of the label you wish to move, and drag it to your desired area.

• If your mouse has no middle mouse button, then click on the Translation icon on the toolbar, and click on the handle (as shown) of the label you wish to move, and drag it to your desired area.

The +/- buttons on the side of the Residue and Atom buttons will shift the label. There are also other residue label move options available when you click and hold the residue label button. These options include Shift to Sidechain Tips, Shift to Calphas, and Restore Positions

5.5.4 Label Variables

To label variable angles (dihedral-torsion, planar and phase angle) the molecule needs to be converted into an ICM object.

• Convert the molecle to an ICM object.
• Select the atoms for which you would like to display the variables (see display structure or selection toolbar).
• Click on the toggle variable label button shown above located in the display tab.
• Change the font size by using the +/- buttons.
• Change the font and color by clicking and holding on the variable atom label button.

To change the variable label style click and hold the variable atom label button as shown below.

Rings of varying diameter and color are superimiposed on rotatable bonds. Green rings with large diameter are considered less constrained than rings with small green rings. Red rings are highly constrained and non-rotatable. When the Label Style/Energy option is selected the first number displayed represents the bond angle, the second the energy and the third the worst energy that could be achieved by rotating the bond.

5.5.5 Labeling Sites

To display and undisplay sites use the Toggle Site Label button shown below

• Click the label SITE button.

To change the level of label detail:

• Click and hold the label SITE button and select the desired level of label detail or style.

NOTE: To create your own site labels see the Label Annotation section.

5.5.6 Label Annotation

To annotate a protein structure. Select the region you wish to annotate (see Selection Toolbar).

• Right click on the selection.
• Select the option Annotate Selection.
• Enter the annotation into the text box and select ok

To change the detail (such as residue number) contained within the annotation.

• Click in the bottom left hand corner of your annotation.

To undisplay an annotation click on the site button in the Display tab.

To permanently delete an annotation.

• Right click on the Sites box in the ICM Workspace and select delete (see below).

To change the direction the arrow is pointing or move the arrow.

• Click on the translation button (or use the middle mouse button).
• Click on the end of the arrow and drag to the desired position.

5.5.7 Changing Label Colors

To change the color of any label:

• Click and hold down the required label button and a menu as shown below will be displayed.

• Select color.