Water Placement Panel

Summary

In this panel you set options and run a job to place water molecules. The options in this panel ensure that water molecules are placed in reasonable locations.

Opening the Water Placement Panel

To open the Water Placement panel, you can:

Using the Water Placement Panel

To place water molecules, you must first have a difference density map. Water molecules are placed in all locations that match the criteria specified in the text boxes. When you have set these values, choose Job Settings from the Settings button menu,

set the job parameters in the Job Settings dialog box, and click Run to run the job.

Once the job is run, it is a good idea to check the placements using the Density Fit panel.

To center the view on a particular part of a density map, right-click on one of the displayed vertices of the map.

Water Placement Panel Features

Minimum peak height (Fo-Fc) text box

Specify the minimum height of any peak that will be used to place a water molecule.

Maximum B-factor text box

Specify the maximum B-factor for any water molecule to be accepted as placed. Water molecules with larger B-factors are rejected as "noise".

Minimum hydrogen-bonding distance text box

Specify the minimum distance between the oxygen atom and a hydrogen-bond donor or acceptor. Water molecules will not be placed in locations where this distance is less than the value specified.

Minimum distance to other atoms text box

Specify the minimum distance between the oxygen atom and any other atom. Water molecules will not be placed in locations where this distance is less than the value specified.

Maximum distance to other atoms text box

Specify the maximum distance between the oxygen atom and any other atom. Water molecules will not be placed in locations where this distance is greater than the value specified.

Calculation Settings button

This button opens the Calculation Settings dialog box, in which you can set the resolution limits and limits for rejecting reflections; choose an overall B-factor scaling and a bulk solvent correction; choose whether to use implicit solvation, include hydrogen atoms in the output, restrain planar groups, set B-factors for the duration of the job, use phased reflections for the map, and change the relative weight of the force-field and X-ray terms.

Job toolbar

The Job toolbar is used to make settings for a job and to start it.

Job name text box

Enter a name for the job in this text box.

Settings button menu

This button opens the Job Settings dialog box. The arrow to the right opens a menu, from which you can make settings or perform actions that are related to the job.

The menu items are described below.

  • Job Settings—Make and save settings for the incorporation of the job into the Maestro project, the job name, the host, the distribution of subjobs, and any other application-specific job settings. Opens the Job Settings dialog box.
  • Preferences—Set general preferences for running jobs. Opens the Preferences panel at the Jobs - Starting section.
  • Write—Write the input files for the job but do not start it. The file names are based on the current job name, and the files are written to a subdirectory of the current working directory that is named with the job name.
Job status button

This icon indicates when there are jobs running for the application that belong to the current project. It starts spinning when the first job starts, and stops when there are no more jobs running. If a job fails to start, it changes to an exclamation point.

Clicking the button shows a small job status window that lists the job name and status for all active jobs submitted from the current panel (for Jaguar and MacroModel this means all jobs from any of the application panels). You can double-click on a row to open the Monitor panel and monitor the job, or click the Monitor button to open the Monitor panel and close the job status window. The job status is updated while the window is open. If a job finishes while the window is open, the job remains displayed but with the new status. The rows are colored according to the status: yellow for submitted, green for launched, running, or finished, red for incorporated, died, or killed. Click anywhere outside the window to close it.

Run button

Run the job with the current job settings.

Status bar

The status bar displays information about the current job settings for the panel. This includes the job name, task name and task settings (if any), number of subjobs (if any) and the host name and job incorporation setting. It also displays a message for a short time when you start a new job.

The status bar also contains the Help button, which opens the help topic for the panel.

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File: primex/water_placement_panel.html
Last updated: 14 Apr 2014