ClinVar Genomic variation as it relates to human health
NM_007294.4(BRCA1):c.110C>A (p.Thr37Lys)
No data submitted for somatic clinical impact
No data submitted for oncogenicity
Variant Details
- Identifiers
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NM_007294.4(BRCA1):c.110C>A (p.Thr37Lys)
Variation ID: 54131 Accession: VCV000054131.16
- Type and length
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single nucleotide variant, 1 bp
- Location
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Cytogenetic: 17q21.31 17: 43115750 (GRCh38) [ NCBI UCSC ] 17: 41267767 (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 Apr 1, 2014 May 1, 2024 Aug 10, 2015 - HGVS
- ... more HGVS ... less HGVS
- Protein change
- T37K
- Other names
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229C>A
- Canonical SPDI
- NC_000017.11:43115749:G:T
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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.110C>A, a MISSENSE variant, produced a function score of -2.49, 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 |
13050 | 14856 |
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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Pathogenic (4) |
reviewed by expert panel
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Aug 10, 2015 | RCV000111781.14 | |
Pathogenic (1) |
criteria provided, single submitter
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Oct 31, 2018 | RCV000763401.10 | |
Likely pathogenic (1) |
criteria provided, single submitter
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Feb 18, 2022 | RCV001378528.15 | |
Pathogenic (1) |
criteria provided, single submitter
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Jul 20, 2022 | RCV002433536.9 |
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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Pathogenic
(Aug 10, 2015)
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reviewed by expert panel
Method: curation
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Breast-ovarian cancer, familial 1
Affected status: unknown
Allele origin:
germline
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Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA)
Accession: SCV000244295.1
First in ClinVar: Sep 29, 2015 Last updated: Sep 29, 2015 |
Comment:
IARC class based on posterior probability from multifactorial likelihood analysis, thresholds for class as per Plon et al. 2008 (PMID: 18951446). Class 5 based on … (more)
IARC class based on posterior probability from multifactorial likelihood analysis, thresholds for class as per Plon et al. 2008 (PMID: 18951446). Class 5 based on posterior probability = 1 (less)
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Pathogenic
(Apr 19, 2023)
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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:
unknown
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Baylor Genetics
Accession: SCV004215155.1
First in ClinVar: Dec 30, 2023 Last updated: Dec 30, 2023 |
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Pathogenic
(Jul 20, 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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Ambry Genetics
Accession: SCV002744812.2
First in ClinVar: Nov 29, 2022 Last updated: May 01, 2024 |
Comment:
The p.T37K pathogenic mutation (also known as c.110C>A), located in coding exon 2 of the BRCA1 gene, results from a C to A substitution at … (more)
The p.T37K pathogenic mutation (also known as c.110C>A), located in coding exon 2 of the BRCA1 gene, results from a C to A substitution at nucleotide position 110. The threonine at codon 37 is replaced by lysine, an amino acid with similar properties. This alteration was identified in a Malaysian woman diagnosed with triple-negative breast cancer at age 31, as well as an African America woman diagnosed with bilateral breast cancer, at ages 27 and 33 (Yang XR et al. Breast Cancer Res Treat. 2017 Oct;165:687-697; Skendelas JP et al. Clin Case Rep. 2018 Dec;6:2457-2462). One functional study found that this nucleotide substitution is non-functional in a high-throughput, genome editing, haploid cell survival assay (Findlay GM et al. Nature. 2018 10;562:217-222). Another alteration at the same codon, p.T37R (c.110C>G), has also been determined to be functionally and structurally deleterious (Findlay GM et al. Nature. 2018 10;562:217-222; Morris JR et al. Hum Mol Genet. 2006; 15:599-606; Ransburgh DJ et al. Cancer Res. 2010; 70:988-95; Towler WI et al. Hum Mutat. 2013; Ruffner H et al. Proc. Natl. Acad. Sci. U.S.A. 2001 Apr; 98(9):5134-9; Zhu Q et al. Nature 2011 Sep; 477(7363):179-84; Brzovic PS et al. Nat. Struct. Biol. 2001 Oct;8(10):833-7; Ambry Internal Data). This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). 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
(Oct 31, 2018)
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criteria provided, single submitter
Method: clinical testing
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Familial cancer of breast
Breast-ovarian cancer, familial, susceptibility to, 1 Pancreatic cancer, susceptibility to, 4 Fanconi anemia, complementation group S
Affected status: unknown
Allele origin:
unknown
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Fulgent Genetics, Fulgent Genetics
Accession: SCV000894127.1
First in ClinVar: Mar 31, 2019 Last updated: Mar 31, 2019 |
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Likely pathogenic
(Feb 18, 2022)
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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: SCV001576113.4
First in ClinVar: May 10, 2021 Last updated: Feb 14, 2024 |
Comment:
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 … (more)
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. Experimental studies have shown that this missense change affects BRCA1 function (PMID: 25823446, 27272900, 30209399). Advanced modeling of experimental studies (such as gene expression, population dynamics, functional pathways, and cell-cycle effects in cell culture) performed at Invitae indicates that this missense variant is expected to disrupt BRCA1 protein function. This missense change has been observed in individual(s) with breast cancer (PMID: 19543972, 25823446, 28664506, 30564348). ClinVar contains an entry for this variant (Variation ID: 54131). This sequence change replaces threonine, which is neutral and polar, with lysine, which is basic and polar, at codon 37 of the BRCA1 protein (p.Thr37Lys). This variant is not present in population databases (gnomAD no frequency). (less)
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Uncertain significance
(Jul 19, 2006)
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no assertion criteria provided
Method: clinical testing
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Breast-ovarian cancer, familial 1
Affected status: yes
Allele origin:
germline
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Breast Cancer Information Core (BIC) (BRCA1)
Accession: SCV000144321.1
First in ClinVar: Apr 01, 2014 Last updated: Apr 01, 2014 |
Number of individuals with the variant: 1
Geographic origin: American
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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: SCV001242839.1
First in ClinVar: Apr 18, 2020 Last updated: Apr 18, 2020 |
Method: saturation genome editing in haploid cells
Result:
LOSS_OF_FUNCTION:-2.49352324025865
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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: SCV001242839.1
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Comment:
The saturation genome editing (SGE) assay for BRCA1 NM_007294.3:c.110C>A, a MISSENSE variant, produced a function score of -2.49, corresponding to a functional classification of LOSS_OF_FUNCTION. … (more)
The saturation genome editing (SGE) assay for BRCA1 NM_007294.3:c.110C>A, a MISSENSE variant, produced a function score of -2.49, 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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Unusual recurrence of breast cancer in a BRCA-variant patient after fat grafting. | Skendelas JP | Clinical case reports | 2018 | PMID: 30564348 |
Accurate classification of BRCA1 variants with saturation genome editing. | Findlay GM | Nature | 2018 | PMID: 30209399 |
Prevalence and spectrum of germline rare variants in BRCA1/2 and PALB2 among breast cancer cases in Sarawak, Malaysia. | Yang XR | Breast cancer research and treatment | 2017 | PMID: 28664506 |
Functional Assessment of Genetic Variants with Outcomes Adapted to Clinical Decision-Making. | Thouvenot P | PLoS genetics | 2016 | PMID: 27272900 |
Massively Parallel Functional Analysis of BRCA1 RING Domain Variants. | Starita LM | Genetics | 2015 | PMID: 25823446 |
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 |
Characterization of BRCA1 ring finger variants of uncertain significance. | Sweet K | Breast cancer research and treatment | 2010 | PMID: 19543972 |
http://hci-exlovd.hci.utah.edu/variants.php?select_db=BRCA1&action=search_all&search_Variant%2FDNA=c.110C%3EA | - | - | - | - |
https://sge.gs.washington.edu/BRCA1/ | - | - | - | - |
Text-mined citations for rs80356880 ...
HelpRecord last updated Nov 25, 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.