We identified a gene with two different annotations in different databases, integrin β1 binding protein 3 (Itgb1bp3) or nicotinamide riboside kinase 2 (Nmrk2, official symbol), as a robustly upregulated in several etiologically distinct mouse models of DCM [8,9]. This evidence concerns the gene NMRK2 and familial dilated cardiomyopathy.