The Differential Expression Analysis Pipeline allows you explore your data and to perform DE analysis on experimental groups within a dataset.
To begin, upload or restore a dataset from the
file management
tab.
Alternatively, load and automatically analyse an
example dataset
to see the pipeline in action.
Experimental design
Thunderbolt needs to know about the experimental design for this dataset to properly group sample data. This design is comprised of
experimental variables
and
conditions
.
Experimental variables
Aspects of the experiment which were varied. Examples may include:
Diet
Drug treatment
IP bait
Conditions
Different perturbations used for each experimental variables, including controls. Examples may include:
For
diet
: chow, HFD (high-fat diet)
For
treatment
: vehicle, drugX1nM, drugX10nM, drugX100nM, drugY1nM, drugY10nM, drugY100nM
For
IP bait
: control, AKAP1
To begin inputting conditions:
To the right, enter the name of the ONE variable associated with the condition[s] to be input. If there are multiple variables, you can add conditions for those later.
Enter the name of a condition. Conditions can be entered one at a time or simultaneously. To enter multiple conditions simultaneously, separate with a comma or semi-colon.
Optionally, enter a string of characters (or one per condition, separated by commas/semi-colons) in the “autofill” text box which appears in the column names in your data associated with the condition.
Hit 'Add condition'. The variable and condition[s] will appear in a table.
Repeat steps 1-4 as needed to add to this table. To add a new condition to an existing variable, leave the same variable name in the variable input box and enter your new condition. When satisfied, scroll down.
List of conditions and list of autofill strings must be same length!
Annotate columns
Mark columns from your dataset (listed below) as descriptive data (such as Protein ID, Gene name, description etc.) or numeric data (protein abundance). You only need to mark columns you want included in your analysis.
If every numeric data column has a common string of characters in its column name, you may automatically mark them by entering them in the text box to the right.
Next, assign a set of conditions to each numeric column. When finished, hit 'Apply design' below the table. Thunderbolt will assign columns to unique groups for the analysis. Then, proceed to the next page.