Torrent Suite SoftwareAdministration Guide
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Configure Basecaller Default Parameters
This section describes how to use the Admin Interface to change the basecaller default parameters, which include the quality trimming parameters .
Each chip type has a separate basecaller parameter field. The basecaller parameters and quality trimming parameters can be customized for each chip type.
The quality and trimming parameters are described in this table:
Parameter | Description |
---|---|
Qual cutoff |
Sets the threshold for the average quality values within the qual window.
A read is trimmed when the average of quality values measured over the (sliding) window of size
Basecaller parameter:
|
Qual window |
S ets the size of a sliding window inside of which quality values are measured and averaged.
Basecaller parameter:
|
Adapter cutoff |
Controls how accurate a match is required between the called sequence and adapter sequence this field sets the cutoff required to actually perform the adapter trimming. The lower the value, the more accurate match between the called sequence and adapter sequence is required to trim. (The value also depends on adapter length. Typically a value of half the adapter length [ 0.5 * (adapter length)] is reasonable.)
Basecaller parameter:
|
Note : Basecaller arguments by default are different for sequencer type, regular analyses, thumbnail analysis, and recalibration. This example shows the Basecaller arguments for regular analyses on Ion PGM data.
Follow these steps to change or customize basecaller parameters:
-
In the Rundb administration page, select
Analysis Args
:
-
In the Name column, click on the name for your chip type:
-
Make your basecaller parameter and quality parameter changes to the
Default Basecaller args:
field:
( Note: Enter the basecaller arguments in one line. The example here is wrapped.) -
Click
Save
.
-
Repeat your changes to other chip types also, if required.
More information on quality trimming is available in the Technical Note - Filtering and Trimming in the installed product docs or on the Ion Community at http://ioncommunity.lifetechnologies.com/docs/DOC-6637 .
Adapter trimming is described in the section Removal of Adapter Sequence.
Quality trimming is described in the section Removal of lower-quality 3' Ends with Low Quality Scores.
Torrent Suite™ Software Administration Guide
Deploy Your System
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Install the Server
Network Connectivity
Update Torrent Suite™ Software
Install Analysis Plugins
Configure Torrent Suite™ Software
Verify Functionality
Manage Sequencer Settings from the Torrent Browser
Monitor Free Disk Space
Back Up and Restore Data
Mount a USB Drive
Boot Into Single-User Mode
Install and Use a UPS
Axeda® Remote System Monitoring (RSM)
Configure Chips
Configure Experiments
Configure Global Configs
Configure Users
Approve User Account Requests
Configure Basecaller Default Parameters
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