rs760066036
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_006397.3(RNASEH2A):c.894C>A(p.Ser298Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000121 in 1,613,276 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_006397.3 missense
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RNASEH2A | NM_006397.3 | c.894C>A | p.Ser298Arg | missense_variant | Exon 8 of 8 | ENST00000221486.6 | NP_006388.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| RNASEH2A | ENST00000221486.6 | c.894C>A | p.Ser298Arg | missense_variant | Exon 8 of 8 | 1 | NM_006397.3 | ENSP00000221486.4 |
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152124Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000399 AC: 10AN: 250410 AF XY: 0.0000517 show subpopulations
GnomAD4 exome AF: 0.000129 AC: 189AN: 1461152Hom.: 0 Cov.: 32 AF XY: 0.000143 AC XY: 104AN XY: 726892 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152124Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74296 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Aicardi-Goutieres syndrome 4 Uncertain:2
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
This sequence change replaces serine, which is neutral and polar, with arginine, which is basic and polar, at codon 298 of the RNASEH2A protein (p.Ser298Arg). This variant is present in population databases (rs760066036, gnomAD 0.009%). This variant has not been reported in the literature in individuals affected with RNASEH2A-related conditions. ClinVar contains an entry for this variant (Variation ID: 448168). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Inborn genetic diseases Uncertain:1
The c.894C>A (p.S298R) alteration is located in exon 8 (coding exon 8) of the RNASEH2A gene. This alteration results from a C to A substitution at nucleotide position 894, causing the serine (S) at amino acid position 298 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
not provided Uncertain:1
Available data are insufficient to determine the clinical significance of the variant at this time. The frequency of this variant in the general population is uninformative in assessment of its pathogenicity. (http://gnomad.broadinstitute.org) Polyphen and MutationTaster predict this amino acid change may be benign. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at