The Peak Count Matrix element
Peak Count Matrix () elements are Tracks that hold information about peaks, as well as their nearby genes and transcription factors. See https://resources.qiagenbioinformatics.com/manuals/clcgenomicsworkbench/current/index.php?manual=Tracks.html for more information on Tracks.
Peak Count Matrix elements contain various table views, described below. See https://resources.qiagenbioinformatics.com/manuals/clcgenomicsworkbench/current/index.php?manual=Working_with_tables for general information on working with tables.
Nearby Genes Table
The Nearby Genes Table () contains a row for each gene near a peak, and has the following columns:
- Nearby gene. The name of the gene.
- Min/Max/Avg expression. The minimum/maximum/average gene expression across all cells.
- Nonzero values. The number of cells with peaks near the gene.
Clicking on a row opens a separate table, listing the cells with peaks near the gene.
Peak Count Table
The Peak Count Table () contains one row for each peak, and has the following columns:
- Name. The name of the peak.
- Chromosome. The chromosome that the peak is on.
- Region. The region that the peak spans.
- Nearby gene. The genes near the peak.
- Transcription factor. The transcription factors for the peak.
- Min/Max/Avg expression. The minimum/maximum/average peak expression across all cells.
- Cells. The number of cells with evidence of open chromatin at the peak.
Clicking on a row opens a separate table, listing the cells with evidence of open chromatin at the peak.
To create a new matrix element from a row selection in the Peak Count Table, use the Create Matrix from Selection option in the right-click menu. Cells with evidence of open chromatin at one or more of the selected peaks are included.
Transcription Factors Table
The Transcription Factors Table () contains a row for each transcription factor, and has the following columns:
- Transcription factor. The name of the transcription factor.
- Min/Max/Avg expression. The minimum/maximum/average transcription factor expression across all cells.
- Nonzero values. The number of cells with peaks having the transcription factor.
Clicking on a row opens a separate table, listing the cells with peaks having the transcription factor.
Cell Table
The Cell Table () for a Peak Count Matrix () contains one row for each cell, and has the following columns:
- Sample. The sample that the cell is from.
- Barcode. The cell barcode.
- Nonzero values. The number of peaks expressed by the cell.
Clicking on a row opens a separate table, listing the peaks expressed by the cell.
To create a new matrix element from a row selection in the Cell Table, use the Create Matrix from Selection option in the right-click menu.