Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_004624.4(VIPR1):c.450C>A(p.Tyr150*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. Y150Y) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
VIPR1 (HGNC:12694): (vasoactive intestinal peptide receptor 1) This gene encodes a receptor for vasoactive intestinal peptide, a small neuropeptide. Vasoactive intestinal peptide is involved in smooth muscle relaxation, exocrine and endocrine secretion, and water and ion flux in lung and intestinal epithelia. Its actions are effected through integral membrane receptors associated with a guanine nucleotide binding protein which activates adenylate cyclase. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]