LDB3 and myofibrillar myopathy 4: In the same study, a novel missense mutation c.1719G > A (p.V566M) in the LIM domain binding 3 gene (LDB3, also known as ZASP; causative gene for zaspopathy, a subtype of myofibrillar myopathies), coding for Z-band alternatively spliced PDZ-motif-containing protein, was reported in one of the patients[32].