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Partek Genomics Suite enables you to visualize each probe and compare the methylation between the groups at a single CpG site level. The visualization can be supplemented with a special annotation file which can be built using a UCSC annotation file as the basis.
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SubtitleText | Browsing to location from spreadsheet with differentially expressed genes |
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AnchorName | Browsing to Location |
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SubtitleText | Viewing location in Genome Viewer |
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AnchorName | View at Location |
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Adding UCSC CpG Annotations
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SubtitleText | Navigating to the Table Browser at the UCSC Genome Browser website |
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AnchorName | UCSC Genome Browser |
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SubtitleText | Configuring the Table Browser to output CpG Islands BED file |
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AnchorName | Configuring Table Browser |
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- Set group to Regulation
- Set track to CpG Islands
- Set table to cpgIslandExt
- Set output format to BED
- Set output file to cpg.bed
- Select get output
The Output cpgIslandExt as BED page will open.
- Select get BED to download a compressed folder containing the BED file
- Unzip the file using 7-Zip, WinRAR, or a similar program of your choice to a location you will be able to find
Next, we can import the BED file into Partek Genomics Suite.
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SubtitleText | Importing the CpG Islands map BED file |
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AnchorName | Importing BED File |
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The BED file will open as a new spreadsheet (Figure 5).
- Change the spreadsheet name to UCSC CpG Island Annotation and save it
For this region list, you can also calculate the average beta values for the probes in each island per sample and detect differential methylated CpG islands regions. Detailed information on how to get average beta value for each CpG can be found from the Determining the average values for a region list section of Help>On-line Tutorials>User Guides> List. The visualization can be supplemented with a special annotation file which can be built using a UCSC annotation file as the basis. Building and viewing the UCSC annotation file is available as an optional section of the tutorial, Optional: Adding UCSC CpG Island Annotations.