Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_198060.4(NRAP):c.4696C>G(p.Arg1566Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1566C) has been classified as Benign.
NRAP (HGNC:7988): (nebulin related anchoring protein) Predicted to enable actin filament binding activity and muscle alpha-actinin binding activity. Predicted to be involved in cardiac muscle thin filament assembly. Predicted to be located in fascia adherens; muscle tendon junction; and myofibril. Predicted to be active in Z disc. [provided by Alliance of Genome Resources, Apr 2022]
NRAP Gene-Disease associations (from GenCC):
dilated cardiomyopathy
Inheritance: AR Classification: STRONG Submitted by: ClinGen