Fig. 5

A–D Principal component analysis between low- and high-risk groups based on the expression of all genes, ten model genes, mitochondrial fission genes, and mitochondrial fusion genes. E Correlations between mitochondrial dynamics genes and ten model genes. F The network between mitochondrial dynamic genes and ten signature genes. G Heatmap for the co-expression of the ten model genes with MTFR2. H The differential expressions of MTFR2 in normal and HCC tissues. I The KM curves for the expression of MTFR2. J GO analysis of ten mitochondrial dynamics-related genes. K KEGG analysis of ten mitochondrial dynamics-related genes. KM curves Kaplan–Meier curves, GO enrichment and KEGG pathway analysis. CDF cumulative distribution function; DEG differentially expressed gene, GO Gene Ontology; KEGG Kyoto Encyclopaedia of Genes and Genomes, BP biological process, CC cellular component, MF molecular function. * P < 0.05, ** P < 0.01, *** P < 0.001