However, the involvement of DAG1 in clusters *198, #2, #144, #112, #103, #118, #11, #89 and #63 (Supplementary Material S1, S2), appears to be related to cardiomyopathy (Michele et al., 2009), while it is more focused on ‘ECM proteoglycan components’ in cluster *211. This evidence concerns the gene DAG1 and cardiomyopathy.