ClinVar Genomic variation as it relates to human health
NM_007294.4(BRCA1):c.91A>G (p.Ile31Val)
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.
Uncertain significance(1); Likely benign(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.91A>G (p.Ile31Val)
Variation ID: 823090 Accession: VCV000823090.7
- Type and length
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single nucleotide variant, 1 bp
- Location
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Cytogenetic: 17q21.31 17: 43115769 (GRCh38) [ NCBI UCSC ] 17: 41267786 (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 Mar 16, 2020 Aug 18, 2024 May 3, 2024 - HGVS
- ... more HGVS ... less HGVS
- Protein change
- I31V
- Other names
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- Canonical SPDI
- NC_000017.11:43115768:T:C
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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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functionally_normal; Sequence Ontology [ SO:0002219]The saturation genome editing (SGE) assay for BRCA1 NM_007294.3:c.91A>G, a MISSENSE variant, produced a function score of 0.17, corresponding to a functional classification of FUNCTIONAL. SGE function score ranges for classification are as follows: ‘functional’, score > -0.748; ‘intermediate’, -0.748 > score > -1.328; ‘non-functional’, score < -1.328. The median synonymous SNV scored 0.0 and the median nonsense SNV scored -2.12. [submitted by Brotman Baty Institute, University of Washington]
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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 |
13041 | 14847 |
Conditions - Germline
Condition
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The condition for this variant-condition (RCV) record in ClinVar. |
Classification
Help
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
Help
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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May 22, 2019 | RCV001018996.4 | |
not provided (1) |
no classification provided
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- | RCV001076169.3 | |
Likely benign (1) |
criteria provided, single submitter
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May 3, 2024 | RCV004693442.1 |
Submissions - Germline
Classification
Help
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
Help
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
Help
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
Help
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
(May 22, 2019)
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criteria provided, single submitter
Method: clinical testing
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Hereditary cancer-predisposing syndrome
Affected status: unknown
Allele origin:
germline
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Ambry Genetics
Accession: SCV001180296.4
First in ClinVar: Mar 16, 2020 Last updated: May 01, 2024 |
Comment:
The p.I31V variant (also known as c.91A>G), located in coding exon 2 of the BRCA1 gene, results from an A to G substitution at nucleotide … (more)
The p.I31V variant (also known as c.91A>G), located in coding exon 2 of the BRCA1 gene, results from an A to G substitution at nucleotide position 91. The isoleucine at codon 31 is replaced by valine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. (less)
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Likely benign
(May 03, 2024)
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criteria provided, single submitter
Method: curation
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Hereditary breast ovarian cancer syndrome
Affected status: not provided
Allele origin:
germline
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German Consortium for Hereditary Breast and Ovarian Cancer, University Hospital Cologne
Accession: SCV005196407.1
First in ClinVar: Aug 18, 2024 Last updated: Aug 18, 2024 |
Comment:
According to the ClinGen ENIGMA BRCA1 v1.0.0 criteria we chose these criteria: PM2 (supporting pathogenic): absent from gnomAD, BP4 (supporting benign): BayesDel no-AF score ≤ … (more)
According to the ClinGen ENIGMA BRCA1 v1.0.0 criteria we chose these criteria: PM2 (supporting pathogenic): absent from gnomAD, BP4 (supporting benign): BayesDel no-AF score ≤ 0.15 AND SpliceAI ≤0.1, BS3 (strong benign): Findlay et al. 2018, functional (BS3 met) (less)
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not provided
(-)
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no classification provided
Method: in vitro
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Breast-ovarian cancer, familial 1
Affected status: not applicable
Allele origin:
not applicable
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Brotman Baty Institute, University of Washington
Accession: SCV001241867.1
First in ClinVar: Apr 18, 2020 Last updated: Apr 18, 2020 |
Method: saturation genome editing in haploid cells
Result:
FUNCTIONAL:0.171253179516736
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Germline Functional Evidence
Functional
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The functional consequence of the variant, based on experimental evidence and provided by the submitter. consequence |
Method
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A brief description of the method used to determine the functional consequence of the variant. A citation for the method is included, when provided by the submitter. |
Result
Help
A brief description of the result of this method for this variant. |
Submitter
Help
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
Help
This column includes more information supporting functional evidence for the germline classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter. |
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functionally_normal
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Method citation(s):
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Brotman Baty Institute, University of Washington
Accession: SCV001241867.1
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Comment:
The saturation genome editing (SGE) assay for BRCA1 NM_007294.3:c.91A>G, a MISSENSE variant, produced a function score of 0.17, corresponding to a functional classification of FUNCTIONAL. … (more)
The saturation genome editing (SGE) assay for BRCA1 NM_007294.3:c.91A>G, a MISSENSE variant, produced a function score of 0.17, corresponding to a functional classification of FUNCTIONAL. SGE function score ranges for classification are as follows: ‘functional’, score > -0.748; ‘intermediate’, -0.748 > score > -1.328; ‘non-functional’, score < -1.328. The median synonymous SNV scored 0.0 and the median nonsense SNV scored -2.12. (less)
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Citations for germline classification of this variant
HelpTitle | Author | Journal | Year | Link |
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Accurate classification of BRCA1 variants with saturation genome editing. | Findlay GM | Nature | 2018 | PMID: 30209399 |
https://sge.gs.washington.edu/BRCA1/ | - | - | - | - |
Text-mined citations for rs1597912041 ...
HelpRecord last updated Oct 08, 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.