rs761057565
Variant summary
Our verdict is Likely benign. The variant received -4 ACMG points: 1P and 5B. PP3BP6BS2
The NM_002878.4(RAD51D):c.144+3G>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000992 in 1,612,458 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_002878.4 splice_region, intron
Scores
Clinical Significance
Conservation
Publications
- breast-ovarian cancer, familial, susceptibility to, 4Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
- hereditary breast ovarian cancer syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- hereditary breast carcinomaInheritance: AD Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -4 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| RAD51D | ENST00000345365.11 | c.144+3G>T | splice_region_variant, intron_variant | Intron 2 of 9 | 1 | NM_002878.4 | ENSP00000338790.6 | |||
| ENSG00000267618 | ENST00000593039.5 | c.3+2183G>T | intron_variant | Intron 1 of 6 | 2 | ENSP00000466834.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152188Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000636 AC: 16AN: 251426 AF XY: 0.0000589 show subpopulations
GnomAD4 exome AF: 0.00000959 AC: 14AN: 1460270Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3AN XY: 726580 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152188Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74350 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
This variant causes a G to T nucleotide substitution at the +3 position of intron 2 of the RAD51D gene. RNA functional studies have reported that this variant does not affect RNA splicing (PMID: 31642931). To our knowledge, this variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 18/282826 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Breast-ovarian cancer, familial, susceptibility to, 4 Uncertain:1Benign:1
The RAD51D c.144+3G>T variant was not identified in the literature nor was it identified in the Cosmic, databases. The variant was identified in dbSNP (ID: rs761057565) as “NA”, ClinVar (classified uncertain significance by Invitae and Ambry Genetics) and in control databases in 17 of 277220 chromosomes at a frequency of 0.00006 (Genome Aggregation Database Feb 27, 2017). Breakdown of the observations by population include Other in 1 of 6466 chromosomes (freq: 0.0002) and East Asian in 16 of 18870 chromosomes (freq: 0.0008), while not observed in the African, Latino, European Non-Finnish, Ashkenazi Jewish, European Finnish, and South Asian populations. The c.144+3G>T variant is located in the 5' splice region but does not affect the invariant +1 and +2 positions. However, positions +3 to +6 are part of the splicing consensus sequence and variants involving these positions sometimes affect splicing. 2 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
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not provided Uncertain:1
Has not been previously published as pathogenic or benign to our knowledge; In-silico analysis, which includes splice predictors and evolutionary conservation, is inconclusive as to whether the variant alters gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; Also known as IVS3+3G>T; This variant is associated with the following publications: (PMID: 31642931) -
Familial ovarian cancer Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at