To specify the STR filter settings for an STR analysis project
1. On the Viewer Options menu for the STR Analysis viewer, click Filter Settings.
The Filter Settings dialog box opens. The STR Stutter tab is the open tab.
2. Open the STR Filter tab.
A single default filter setting is displayed. The settings are applicable for all alleles for all project markers.
3. Review the default settings, noting the following:
• Any sequence/allele that has read counts/percentages that fall below the AT are not called and are filtered from the results. (The gray portion of the histogram bar contains these values.)
• Any sequence/allele that has read counts/percentages that fall in between the AT and the IT are flagged as a possible allele, and the user must enter a custom call. (The colored portion of the histogram bar contains these values, regardless of the user call.)
• Any sequence/allele that has read counts/percentages that are greater than the IT are called as an allele. (The colored portion of the histogram bar contains these values.)
 | If your lab does not use the Interpretive Threshold (IT), then you should set the IT values to match the Analytical Threshold (AT) values. See To edit the STR Filter tab configuration. |
4. If you are satisfied that the default values are correct for your project, then go to To finish specifying the settings for an STR analysis project (STR tab); otherwise, go to one of the following: