Differential expression analysis and functional enrichment results related to GCN1. A. Volcano plot showing differentially expressed genes (DEGs) between high and low GCN1 expression groups. B. Heatmap of Z-score normalized expression levels of DEGs, highlighting representative significantly upregulated and downregulated genes. Samples are grouped based on high or low GCN1 expression. C. GO and KEGG enrichment analysis results. D-F. GSEA results showing KEGG pathways significantly enriched in samples with high GCN1 expression.