ATP2A2 and dilated cardiomyopathy: The functional enrichment analysis of downregulated kbhb proteins revealed that G3V885 (Myosin-6, Myh6), G3V8B0 (Myosin-7, Myh7), P11507 (sarcoplasmic/endoplasmic reticulum calcium ATPase 2), P16409 (myosin light chain 3), and P56741 (myosin-binding protein C) enriched in the pathogenic mechanism of dilated cardiomyopathy.