Heat map displaying hierarchical clustering results from microarray expression data of genes involved in the MHC-I antigen presentation process.

<p>(<b>A</b>) Enzymes involved in the ubiquitination of target proteins. (<b>B</b>) Subunits belonging to the proteasome complex. (<b>C</b>) MHC class I related-proteins and molecules implicated in the antigen-MHC class I assembly. All the experimental groups, including the corresponding controls (PBS 8 h and PBS – MEM 8 h), were included in the analysis. Different genes are represented in different rows, and different experiments in different columns. Raw expression values are represented as a color scale from red for lower expressions to green for higher expressions.