BAG3 and familial dilated cardiomyopathy: Our finding of rs397516881 in two apparently unrelated DCM probands and three affected family members together with its lack in NHLBI GO exome sequencing project (ESP) [17], 1000 genomes databases [18] and our in-house exome database of 250 Poles argues for genuine association of BAG3 Glu455Lys with DCM.