Proteomics Explorer

Protein Explorer

Model & correlation settings

Effect corrections

Control which confounders to regress out. Aβ/Tau correction removes variance explained by amyloid/tau pathology.

Groups used for correlations

These checkboxes affect how correlations are computed in the Scatter and Cell Markers tabs. All groups are still shown in the visualizations.

Age trend

Aβ trend (APP)

Tau trend (MAPT)

Abundance by NIA-Amyloid

Abundance by Braak stage

Similar genes (click to show scatter)

Correlation
Synergy

Scatter plot

Correlation with Cell/Subcellular Markers

Marker Scatter (click bar to plot)

Cellular Decomposition PCA

PC1

PC2

PC3

PC4

Compare: vs

Differential Correlations

Proteins with the most significant correlation changes between conditions. Bars show correlation range; = condition 1, = condition 2.

Association Statistics

Without cell composition correction

Aβ peptide

Tau (MAPT)

Age

With cell composition correction

Aβ peptide

Tau (MAPT)

Age

Association Explorer

Browse all protein associations. Click a protein to explore in detail.

Correlation / Synergy (top 30)
Corrections:
Samples:

Correlation shows Pearson r between protein abundances. Synergy measures whether a protein pair separates AD / Control / 100+ better together than either protein alone (between/within variance; synergy = S(P1,P2) − max(S(P1), S(P2))). Hover highlights proteins in the volcano plot; click a cell to open the protein scatter.

Correlation
Synergy
Protein Scatter

Peptide Explorer

Protein Structure & Peptide Alignment

100% Download SVG

Scroll to pan. Use buttons or mouse wheel (with Ctrl) to zoom. Bold letters = trypsin cleavage sites (K/R). Red dashed outline = not fully tryptic (one or both termini not cleavage-compatible for that isoform). Red letters = common variants. Colored regions = protein domains.

Peptide Details

Peptide Clean Sequence Position Isoform Alignments

Values shown are log2 peptide abundance (not covariate-corrected).

Missing Values by Peptide

Fraction of missing/zero values per peptide, by group

Mean Abundance by Peptide

Average log2 abundance per peptide, by group. Stars indicate significance vs Control.

Peptide-Peptide Correlation Matrix

Click on a cell to see scatter plot of the two peptides

Synergy

Peptide Scatter

Click a cell in the correlation matrix to view scatter plot

PCA Scores by Age

PCA Loadings

Variance Explained