ClinVar Genomic variation as it relates to human health
NM_007294.4(BRCA1):c.116G>T (p.Cys39Phe)
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.
No data submitted for somatic clinical impact
No data submitted for oncogenicity
Variant Details
- Identifiers
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NM_007294.4(BRCA1):c.116G>T (p.Cys39Phe)
Variation ID: 37393 Accession: VCV000037393.20
- Type and length
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single nucleotide variant, 1 bp
- Location
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Cytogenetic: 17q21.31 17: 43115744 (GRCh38) [ NCBI UCSC ] 17: 41267761 (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 Sep 27, 2014 May 1, 2024 Nov 22, 2023 - HGVS
- ... more HGVS ... less HGVS
- Protein change
- C39F
- Other names
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235G>T
- Canonical SPDI
- NC_000017.11:43115743:C:A
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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_abnormal; Sequence Ontology [ SO:0002218]The saturation genome editing (SGE) assay for BRCA1 NM_007294.3:c.116G>T, a MISSENSE variant, produced a function score of -2.32, corresponding to a functional classification of LOSS_OF_FUNCTION. 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
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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
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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Pathogenic (4) |
criteria provided, single submitter
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Oct 2, 2015 | RCV000030974.9 | |
Likely pathogenic (1) |
criteria provided, single submitter
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Nov 22, 2023 | RCV000206829.10 | |
Likely pathogenic (1) |
criteria provided, single submitter
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Jan 12, 2022 | RCV001798024.4 | |
Pathogenic (2) |
criteria provided, multiple submitters, no conflicts
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Mar 7, 2022 | RCV000509711.7 |
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
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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Likely pathogenic
(Nov 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: SCV000259445.7
First in ClinVar: Jan 31, 2016 Last updated: Feb 28, 2024 |
Comment:
This sequence change replaces cysteine, which is neutral and slightly polar, with phenylalanine, which is neutral and non-polar, at codon 39 of the BRCA1 protein … (more)
This sequence change replaces cysteine, which is neutral and slightly polar, with phenylalanine, which is neutral and non-polar, at codon 39 of the BRCA1 protein (p.Cys39Phe). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with increased risk of breast and/or ovarian cancer (PMID: 28888541, 29446198). ClinVar contains an entry for this variant (Variation ID: 37393). Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (PMID: 30209399) indicates that this missense variant is expected to disrupt BRCA1 function with a positive predictive value of 95%. Experimental studies have shown that this missense change affects BRCA1 function (PMID: 30209399). This variant disrupts the p.Cys39 amino acid residue in BRCA1. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 9808526, 11320250, 12827452, 19543972, 21725363, 21922593, 21990134, 22843421, 23161852, 24489791). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. (less)
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Pathogenic
(Oct 02, 2015)
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criteria provided, single submitter
Method: clinical testing
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Breast-ovarian cancer, familial, susceptibility to, 1
Affected status: unknown
Allele origin:
germline
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Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA), c/o University of Cambridge
Accession: SCV000324975.4
First in ClinVar: Sep 27, 2014 Last updated: Dec 11, 2022 |
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Pathogenic
(Mar 07, 2022)
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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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Color Diagnostics, LLC DBA Color Health
Accession: SCV004361135.1
First in ClinVar: Feb 14, 2024 Last updated: Feb 14, 2024 |
Comment:
This missense variant replaces cysteine with phenylalanine at codon 39 in the RING domain of the BRCA1 protein. Computational prediction suggests that this variant may … (more)
This missense variant replaces cysteine with phenylalanine at codon 39 in the RING domain of the BRCA1 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). Functional studies have shown that this mutant protein has decreased ubiquitin protein ligase activity and is deficient in BARD1 binding, and is predicted to be non-functional for homology-directed DNA repair (PMID: 25823446, 30219179). This variant has been reported to be loss-of-function in a haploid cell proliferation assay (PMID: 30209399). This variant has been reported in individuals affected with breast cancer (PMID: 33278427), and has been identified in one family among the CIMBA participants (PMID: 29446198) (https://cimba.ccge.medschl.cam.ac.uk/). This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). Different variants affecting the same codon, c.115T>A (p.Cys39Ser), c.115T>C (p.Cys39Arg), c.115T>G (p.Cys39Gly), c.116G>A (p.Cys39Tyr), and c.117T>G (p.Cys39Trp) are considered to be disease-causing (ClinVar variation ID: 54151, 54152, 54153, 37392, 267497), supporting that the cysteine at this position is important for protein function. Based on the available evidence, this variant is classified as Pathogenic. (less)
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Likely pathogenic
(Jan 12, 2022)
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criteria provided, single submitter
Method: clinical testing
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Breast and/or ovarian cancer
Affected status: unknown
Allele origin:
germline
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CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario
Accession: SCV002043419.2
First in ClinVar: Dec 29, 2021 Last updated: Mar 11, 2023 |
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Pathogenic
(May 25, 2021)
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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: SCV000607989.5
First in ClinVar: Oct 23, 2017 Last updated: May 01, 2024 |
Comment:
The p.C39F variant (also known as c.116G>T), located in coding exon 2 of the BRCA1 gene, results from a G to T substitution at nucleotide … (more)
The p.C39F variant (also known as c.116G>T), located in coding exon 2 of the BRCA1 gene, results from a G to T substitution at nucleotide position 116. The cysteine at codon 39 is replaced by phenylalanine, an amino acid with highly dissimilar properties. This alteration was identified in a large, worldwide study of BRCA1/2 mutation positive families (Rebbeck TR et al. Hum Mutat, 2018 05;39:593-620). This nucleotide substitution was non-functional in a high-throughput, genome editing, haploid cell survival assay (Findlay GM et al. Nature, 2018 10;562:217-222), and demonstrated impaired BARD1 binding and E3 Ubiquitin Ligase activity (Starita LM et al. Genetics, 2015 Jun;200:413-22). Additionally, codon 39 is located in a critical region of the BRCA1 protein RING domain. Multiple alterations at this codon, including p.C39R, p.C39Y, and p.C39S have been shown to alter the structure of the RING domain and negatively impact protein function and binding (Ruffner H et al. Proc Natl Acad Sci U S A. 2001 Apr 24;98(9):5134-9; Brzovic PS et al. Proc Natl Acad Sci USA. 2003 May;100(10):5646-51; Ransburgh DJ et al. Cancer Res. 2010 Feb 1;70(3):988-95; Sweet K et al. Breast Cancer Res Treat. 2010 Feb;119(3):737-43). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the supporting evidence, this alteration is interpreted as a disease-causing mutation. (less)
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Pathogenic
(Dec 20, 2010)
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no assertion criteria provided
Method: clinical testing
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Breast-ovarian cancer, familial 1
Affected status: not provided
Allele origin:
germline
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Sharing Clinical Reports Project (SCRP)
Accession: SCV000053565.3
First in ClinVar: Apr 04, 2013 Last updated: Sep 27, 2014 |
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Likely pathogenic
(Mar 02, 2020)
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no assertion criteria provided
Method: clinical testing
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Breast-ovarian cancer, familial, susceptibility to, 1
Affected status: yes
Allele origin:
germline
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BRCAlab, Lund University
Accession: SCV004244194.1
First in ClinVar: Feb 14, 2024 Last updated: Feb 14, 2024 |
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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: SCV001242368.1
First in ClinVar: Apr 18, 2020 Last updated: Apr 18, 2020 |
Method: saturation genome editing in haploid cells
Result:
LOSS_OF_FUNCTION:-2.32092314101715
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Germline Functional Evidence
Functional
Help
The functional consequence of the variant, based on experimental evidence and provided by the submitter. consequence |
Method
Help
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_abnormal
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Method citation(s):
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Brotman Baty Institute, University of Washington
Accession: SCV001242368.1
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Comment:
The saturation genome editing (SGE) assay for BRCA1 NM_007294.3:c.116G>T, a MISSENSE variant, produced a function score of -2.32, corresponding to a functional classification of LOSS_OF_FUNCTION. … (more)
The saturation genome editing (SGE) assay for BRCA1 NM_007294.3:c.116G>T, a MISSENSE variant, produced a function score of -2.32, corresponding to a functional classification of LOSS_OF_FUNCTION. 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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BRCA1 and BRCA2 truncating mutations and variants of unknown significance in Egyptian female breast cancer patients. | AbdelHamid SG | Clinica chimica acta; international journal of clinical chemistry | 2021 | PMID: 33278427 |
A Multiplex Homology-Directed DNA Repair Assay Reveals the Impact of More Than 1,000 BRCA1 Missense Substitution Variants on Protein Function. | Starita LM | American journal of human genetics | 2018 | PMID: 30219179 |
Accurate classification of BRCA1 variants with saturation genome editing. | Findlay GM | Nature | 2018 | PMID: 30209399 |
Mutational spectrum in a worldwide study of 29,700 families with BRCA1 or BRCA2 mutations. | Rebbeck TR | Human mutation | 2018 | PMID: 29446198 |
Frequency of mutations in a large series of clinically ascertained ovarian cancer cases tested on multi-gene panels compared to reference controls. | Lilyquist J | Gynecologic oncology | 2017 | PMID: 28888541 |
Massively Parallel Functional Analysis of BRCA1 RING Domain Variants. | Starita LM | Genetics | 2015 | PMID: 25823446 |
Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology. | Richards S | Genetics in medicine : official journal of the American College of Medical Genetics | 2015 | PMID: 25741868 |
Multifactorial likelihood assessment of BRCA1 and BRCA2 missense variants confirms that BRCA1:c.122A>G(p.His41Arg) is a pathogenic mutation. | Whiley PJ | PloS one | 2014 | PMID: 24489791 |
Analysis of BRCA1 variants in double-strand break repair by homologous recombination and single-strand annealing. | Towler WI | Human mutation | 2013 | PMID: 23161852 |
Mechanisms of BRCA1 tumor suppression. | Silver DP | Cancer discovery | 2012 | PMID: 22843421 |
A review of a multifactorial probability-based model for classification of BRCA1 and BRCA2 variants of uncertain significance (VUS). | Lindor NM | Human mutation | 2012 | PMID: 21990134 |
Functional differences among BRCA1 missense mutations in the control of centrosome duplication. | Kais Z | Oncogene | 2012 | PMID: 21725363 |
Assessment of human Nter and Cter BRCA1 mutations using growth and localization assays in yeast. | Millot GA | Human mutation | 2011 | PMID: 21922593 |
Characterization of BRCA1 ring finger variants of uncertain significance. | Sweet K | Breast cancer research and treatment | 2010 | PMID: 19543972 |
A mutation analysis of the BRCA1 gene in 140 families from southeast France with a history of breast and/or ovarian cancer. | Rostagno P | Journal of human genetics | 2003 | PMID: 12827452 |
Cancer-predisposing mutations within the RING domain of BRCA1: loss of ubiquitin protein ligase activity and protection from radiation hypersensitivity. | Ruffner H | Proceedings of the National Academy of Sciences of the United States of America | 2001 | PMID: 11320250 |
Low incidence of BRCA1 mutations among Italian families with breast and ovarian cancer. | Santarosa M | International journal of cancer | 1998 | PMID: 9808526 |
https://sge.gs.washington.edu/BRCA1/ | - | - | - | - |
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Text-mined citations for rs80357498 ...
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.