ClinVar Genomic variation as it relates to human health
NM_007294.4(BRCA1):c.4484+3A>C
The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.
Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.
Pathogenic(1); Uncertain significance(1)
No data submitted for somatic clinical impact
No data submitted for oncogenicity
Variant Details
- Identifiers
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NM_007294.4(BRCA1):c.4484+3A>C
Variation ID: 801077 Accession: VCV000801077.5
- Type and length
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single nucleotide variant, 1 bp
- Location
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Cytogenetic: 17q21.31 17: 43076485 (GRCh38) [ NCBI UCSC ] 17: 41228502 (GRCh37) [ NCBI UCSC ]
- Timeline in ClinVar
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First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.
Last submission Help The date of the most recent submission for each type of classification for this variant.
Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline Jan 5, 2020 Feb 20, 2024 May 22, 2023 - HGVS
- ... more HGVS ... less HGVS
- Protein change
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- Other names
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- Canonical SPDI
- NC_000017.11:43076484:T:G
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Functional
consequence HelpThe effect of the variant on RNA or protein function, based on experimental evidence from submitters.
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Global minor allele
frequency (GMAF) HelpThe global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.
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Allele frequency
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The frequency of the allele represented by this VCV record.
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- Links
Genes
Gene | OMIM | ClinGen Gene Dosage Sensitivity Curation |
Variation Viewer
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Links to Variation Viewer, a genome browser to view variation data from NCBI databases. |
Related variants | ||
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HI score
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The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team. |
TS score
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The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team. |
Within gene
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The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants. |
All
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The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene. |
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BRCA1 | Sufficient evidence for dosage pathogenicity | No evidence available |
GRCh38 GRCh37 |
13040 | 14846 |
Conditions - Germline
Condition
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The condition for this variant-condition (RCV) record in ClinVar. |
Classification
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The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions) |
Review status
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The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. |
Last evaluated
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The most recent date that a submitter evaluated this variant for the condition. |
Variation/condition record
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The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page. |
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Uncertain significance (1) |
criteria provided, single submitter
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Feb 2, 2023 | RCV000985418.4 | |
Pathogenic (1) |
criteria provided, single submitter
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May 22, 2023 | RCV003645120.2 |
Submissions - Germline
Classification
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The submitted germline classification for each SCV record. (Last evaluated) |
Review status
Help
Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria) |
Condition
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The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant. |
Submitter
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The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar. |
More information
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This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter. |
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Uncertain significance
(Feb 02, 2023)
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criteria provided, single submitter
Method: clinical testing
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not provided
Affected status: unknown
Allele origin:
unknown
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Quest Diagnostics Nichols Institute San Juan Capistrano
Accession: SCV001133587.3
First in ClinVar: Jan 05, 2020 Last updated: Jan 06, 2024 |
Comment:
It has not been reported in large, multi-ethnic general populations (http://gnomad.broadinstitute.org). In the published literature, the variant has been reported to cause the complete skipping … (more)
It has not been reported in large, multi-ethnic general populations (http://gnomad.broadinstitute.org). In the published literature, the variant has been reported to cause the complete skipping of exon 14 and a truncated protein product (PMID: 31143303 (2019)). Analysis of this variant using software algorithms for the prediction of the effect of nucleotide changes on splicing yielded predictions that this variant may affect proper BRCA1 mRNA splicing . Based on the available information, we are unable to determine the clinical significance of this variant. (less)
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Pathogenic
(May 22, 2023)
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criteria provided, single submitter
Method: clinical testing
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Hereditary breast ovarian cancer syndrome
Affected status: unknown
Allele origin:
germline
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Labcorp Genetics (formerly Invitae), Labcorp
Accession: SCV004535601.1
First in ClinVar: Feb 20, 2024 Last updated: Feb 20, 2024 |
Comment:
For these reasons, this variant has been classified as Pathogenic. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing … (more)
For these reasons, this variant has been classified as Pathogenic. Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Studies have shown that this variant results in skipping of exon 13 and introduces a premature termination codon (PMID: 31143303; Invitae). The resulting mRNA is expected to undergo nonsense-mediated decay. ClinVar contains an entry for this variant (Variation ID: 801077). This variant has not been reported in the literature in individuals affected with BRCA1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change falls in intron 13 of the BRCA1 gene. It does not directly change the encoded amino acid sequence of the BRCA1 protein. RNA analysis indicates that this variant induces altered splicing and may result in an absent or disrupted protein product. (less)
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Germline Functional Evidence
There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar. |
Citations for germline classification of this variant
HelpTitle | Author | Journal | Year | Link |
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Diagnostic mRNA splicing assay for variants in BRCA1 and BRCA2 identified two novel pathogenic splicing aberrations. | Wangensteen T | Hereditary cancer in clinical practice | 2019 | PMID: 31143303 |
Aberrant 5' splice sites in human disease genes: mutation pattern, nucleotide structure and comparison of computational tools that predict their utilization. | Buratti E | Nucleic acids research | 2007 | PMID: 17576681 |
Statistical features of human exons and their flanking regions. | Zhang MQ | Human molecular genetics | 1998 | PMID: 9536098 |
Text-mined citations for rs1597838973 ...
HelpRecord last updated Sep 29, 2024
This date represents the last time this VCV record was updated. The update may be due to an update to one of the included submitted records (SCVs), or due to an update that ClinVar made to the variant such as adding HGVS expressions or a rs number. So this date may be different from the date of the “most recent submission” reported at the top of this page.