Our verdict is Benign. Variant got -15 ACMG points: 2P and 17B. PM2BP4_StrongBP6_Very_StrongBP7BS1
The NM_003690.5(PRKRA):c.861C>T(p.Ser287Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00298 in 1,613,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. S287S) has been classified as Benign.
PRKRA (HGNC:9438): (protein activator of interferon induced protein kinase EIF2AK2) This gene encodes a protein kinase activated by double-stranded RNA which mediates the effects of interferon in response to viral infection. Mutations in this gene have been associated with dystonia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2008]
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.71).
BP6
Variant 2-178432178-G-A is Benign according to our data. Variant chr2-178432178-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 518334.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-178432178-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-1.81 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00922 (1403/152098) while in subpopulation AFR AF= 0.0294 (1217/41368). AF 95% confidence interval is 0.028. There are 0 homozygotes in gnomad4. There are 646 alleles in male gnomad4 subpopulation. Median coverage is 35. This position pass quality control queck.