Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_024570.4(RNASEH2B):c.719C>G(p.Ser240*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000421 in 1,613,410 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.
RNASEH2B (HGNC:25671): (ribonuclease H2 subunit B) RNase H2 is composed of a single catalytic subunit (A) and two non-catalytic subunits (B and C) and specifically degrades the RNA of RNA:DNA hybrids. The protein encoded by this gene is the non-catalytic B subunit of RNase H2, which is thought to play a role in DNA replication. Multiple transcript variants encoding different isoforms have been found for this gene. Defects in this gene are a cause of Aicardi-Goutieres syndrome type 2 (AGS2). [provided by RefSeq, Nov 2008]
Our verdict: Pathogenic. The variant received 16 ACMG points.
PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 13-50949483-C-G is Pathogenic according to our data. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-50949483-C-G is described in CliVar as Pathogenic/Likely_pathogenic. Clinvar id is 582587.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
This sequence change creates a premature translational stop signal (p.Ser240*) in the RNASEH2B gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in RNASEH2B are known to be pathogenic (PMID: 17846997). This variant is present in population databases (rs372632599, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with RNASEH2B-related conditions. ClinVar contains an entry for this variant (Variation ID: 582587). For these reasons, this variant has been classified as Pathogenic. -