Step 1: Upload data
Group
Supported File Formats: .gpr, .txt(tab delimited), .csv, .xlsx, .xls
COVID-19 patient       Healthy control
Group
Press the "Confirm" button to set the groups for comparison.
Group
Press the "Confirm" button to set the groups for comparison.
Step 2: Specify control spots
Control spots identified by protein IDs/Names:
Control spots identified by # of repeated protein names >=
Step 3: Data pre-processing
3.1 Procat:
Yes No
3.2 Select signal statistics:
By column name:
/
3.3 Select the data range normalization algorithm:
Median normalization Mean normalization Quantile normalization z-score normalization
Min-Max normalization Robust normalization None
Step 4: Filtering by quality control & differential analyses
Experimental Group
Control Group
4.1 Within-Group Quality Control filters for each protein:
At least sample with raw intensity
CV of sample normalized intensities <= %
Average intensity of exprimental group
[Average of all proteins] * [SD of all proteins]

4.1 Within-Group Quality Control filters for each protein:
At least sample with raw intensity
CV of sample normalized intensities <= %
Average intensity of control group
[Average of all proteins] * [SD of all proteins]

4.2 Between-Group Differential Analysis filters for each protein:
|Difference Average of exprimental group and control group| ≥ SD of all spots
Average of exprimental groups/Average of control groups or Average of exprimental groups/Average of control groups
Difference Average of exprimental group and control group (Experimental group - Control group)
≥ [Difference average of all proteins] + * [Difference SD of all proteins] or
≤ [Difference average of all proteins] - * [Difference SD of all proteins]

Statistical Tests (Two-sided):
K-test
U-test
T-test

Multiple hypotheses testing correction: ; Threshold: