[ Labeling | Atoms | Residues | Move | Variables | Sites | Label Color | Custom Labels | Undisplay Custom Label | Displaying Distances | 2D Chemical Label | Origin | Tethers | Dist/Restraints | Display Clash | Rainbow, Box and Ruler | Display Gradient ]

To add labels or display or undisplay pre-defined annotation:

• Select the atoms, residues, molecules, or objects you wish to label in the graphical display or in the ICM Workspace.
• Then use the label options in the Display Tab.

To add new user-defined annotation:

• Select the atoms, residues, molecules, or objects you wish to label in the graphical display or in the ICM Workspace.
• Right click on the selection and choose "Annotate Selection".

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.

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.

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.

To change the location of your residue label:

• Click and hold on the residue label button in the display tab and then choose 'drag 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

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

• Convert the molecule 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 superimposed on rotatable bonds. Green rings with large diameter are considered less constrained than rings with small green rings. Red rings are highly constrained. 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.

When a PDB file is read into ICM the sequence functional/mutation sites listed in Uniprot are automatically displayed. To undisplay all displayed sites click on the Sites button in the display tab. Click in the bottom left hand corner of the annotated site to change the level of detail or click on an arrow head to move the location.

Individual sites can be displayed or undisplayed in the ICM workspace.

To create your own annotated site: Select the region you wish to annotate as a Site. Right click on the selection. Choose the option Annotate/Make Site Enter the annotation into the text box and select ok

Your new site will now be listed in the ICM Workspace.

To edit or delete a site: Right click on the site in the ICM workspace.

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.

To generate a customized a label:

• Select the labels tab.
• Select either 2D or 3D button.
• Enter your label and select the desired color, font and size.

To edit or delete a label - right click on the label in the graphical display as shown below.

Undisplay Residue, Atom, and Variable Label Any label that is displayed can be undisplayed by selecting the region of the molecule related to the label and clicking on the corresponding label button in the labels tab. For example if you wish to undisplay an atom label - click the atom label button. If a label is displayed the corresponding button in the display tab will be shaded blue. When you delete the button will return to grey. 2D and 3D labels have an undisplay button (red cross on the button see customized label section).

Undisplay 2D or 3D label Click onthe undisplay label button in labels tab.

Within the labels tab there are tools for calculating and displaying distances. These tools can also be found in the Tools/Analysis menu.

To display distance between two atoms:

• Click on the labels tab (previously called advanced tab).
• Select the measure distance label button first.
• Select the atoms between which you would like to find the distance. (See selection toolbar)
• The distance will be displayed in angstroms, in green.

To find the distance from one atom to many:

• Click on the labels tab (previously called advanced tab).
• Select the atom from which you wish to measure the distance from (See selection toolbar)
• Click on the 'Show Distances From One Atom To Many' button.
• The distances will be displayed in green.

The maximal and minimal distances can be selected by entering values in the boxes shown here (below) in the labels tab (previously called Advanced tab).

To change the color of the distance label

• Right click on the distpairs under the 3D labels section of the ICM workspace and select Change Color.

To display a 2D chemical label alongside the 3D representation of the chemical in the graphics window.

• Read in the pdb file.
• Right click on the ligand in the ICM workspace and choose Tools/Make 2D Chemical Label.
• Select the display options and click OK

To display and undisplay the axis of the coordinate frame (origin):

• Select the labels tab and select the toggle origin button.

Theory

A tether is a harmonic restraint pulling an atom in the current object to a static point in space. This point is represented by an atom in another object. Typically, it is used to relate the geometry of an ICM molecular object with that of, say, an X-ray structure whose geometry is considered as a target. Tethers can be imposed between atoms of an ICM-object and atoms belonging to another object, which is static and may be a non-ICM-object. You cannot create tethers in ICM-Browser, however, if the project that you have loaded contains tethers between two objects, then they can be displayed:

• Click on the display tab (previously called advanced tab).
• Click on the 'Toggle Tethers' button.

Theory

A distance restraint imposes a penalty function on the distance between two atoms in the same object. You cannot create distance restraints in ICM-Browser, however, if the project that you have loaded contains distance restraints, then they can be displayed:

• Click on the display tab (previously called advanced tab).
• Click on the 'Toggle distance restraints' button.

To display a clash the file needs to be an ICM Object.

• Select the region around which you would like to identify clashes.
• Select the display tabs and the "toggle clashes" button shown below.

To (un)display a rainbow scale, box or ruler use the buttons shown below located in the Labels Tab.

This button is located in the display tab.

This option is described in detail in the language manual http://www.molsoft.com/man/icm-commands.html#display-gradient