LDB3 and myofibrillar myopathy 4: Mutations in MLP (muscle LIM protein) and in Cipher/ZASP have been found in patients affected by both dilated and hypertrophic cardiomyopathy (Knöll et al. 2002; Geier et al. 2003; Sheikh et al. 2007) and Cypher/ZASP mutations were also identified in zaspopathies, a subtype of MFM (Selcen and Engel 2005; Griggs et al. 2007).