17-43094707-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP6_Very_Strong

The NM_007294.4(BRCA1):c.824G>A(p.Gly275Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000354 in 1,611,772 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Benign (★★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G275S) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

BRCA1
NM_007294.4 missense

Scores

Clinical Significance

Benign reviewed by expert panel U:6B:11O:1

Conservation

PhyloP100: 1.57

Publications

35 publications found

Variant links:

Genes affected

BRCA1 (HGNC:1100): (BRCA1 DNA repair associated) This gene encodes a 190 kD nuclear phosphoprotein that plays a role in maintaining genomic stability, and it also acts as a tumor suppressor. The BRCA1 gene contains 22 exons spanning about 110 kb of DNA. The encoded protein combines with other tumor suppressors, DNA damage sensors, and signal transducers to form a large multi-subunit protein complex known as the BRCA1-associated genome surveillance complex (BASC). This gene product associates with RNA polymerase II, and through the C-terminal domain, also interacts with histone deacetylase complexes. This protein thus plays a role in transcription, DNA repair of double-stranded breaks, and recombination. Mutations in this gene are responsible for approximately 40% of inherited breast cancers and more than 80% of inherited breast and ovarian cancers. Alternative splicing plays a role in modulating the subcellular localization and physiological function of this gene. Many alternatively spliced transcript variants, some of which are disease-associated mutations, have been described for this gene, but the full-length natures of only some of these variants has been described. A related pseudogene, which is also located on chromosome 17, has been identified. [provided by RefSeq, May 2020]

BRCA1 Gene-Disease associations (from GenCC):

breast-ovarian cancer, familial, susceptibility to, 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
Fanconi anemia, complementation group S
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
pancreatic cancer, susceptibility to, 4
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
hereditary breast ovarian cancer syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

BRCA1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP6

Variant 17-43094707-C-T is Benign according to our data. Variant chr17-43094707-C-T is described in ClinVar as Benign. ClinVar VariationId is 55726.Status of the report is reviewed_by_expert_panel, 3 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRCA1	NM_007294.4 link	c.824G>A	p.Gly275Asp	missense_variant	Exon 10 of 23	ENST00000357654.9	NP_009225.1	P38398-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BRCA1	ENST00000357654.9 link	c.824G>A	p.Gly275Asp	missense_variant	Exon 10 of 23	1	NM_007294.4	ENSP00000350283.3		P38398-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000577

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000759

AC:

AN:

250354

AF XY:

0.0000813

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00103

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000363

AC:

AN:

1459606

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

725782

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33370

American (AMR)

AF:

0.00

AC:

AN:

44508

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26060

East Asian (EAS)

AF:

0.00134

AC:

AN:

39668

South Asian (SAS)

AF:

0.00

AC:

AN:

86150

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53352

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110448

Other (OTH)

AF:

0.00

AC:

AN:

60292

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74374

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41506

American (AMR)

AF:

0.00

AC:

AN:

15262

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000772

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10590

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000234

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000988

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Uncertain:6Benign:11Other:1

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Breast-ovarian cancer, familial, susceptibility to, 1

Uncertain:2Benign:2

Mar 18, 2016

Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:reference population

- -

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Jun 18, 2019

Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA)

Significance:Benign

Review Status:reviewed by expert panel

Collection Method:curation

Variant allele has low bioinformatic likelihood to encode a missense alteration affecting protein function (Missense prior probability 0.02; http://priors.hci.utah.edu/PRIORS/), AND low bioinformatic likelihood to alter mRNA splicing (splicing prior 0.02; http://priors.hci.utah.edu/PRIORS/), AND minor allele frequency 0.00104 (East Asian), derived from gnomAD v2.1.1 non-cancer (2019-05-13). -

Aug 22, 2023

Mendelics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Uncertain:1Benign:2

Oct 29, 2019

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 19491284, 22116506, 29601120, 30702160, 32426482, 15235020, 24728327, 12624724, 14973102, 15168169, 27257965, 27383479, 27124784, 29770616, 30093976, 30415210, 30287823, 31481248, 28111427, 28364669, 25823446, 31348995) -

Nov 24, 2015

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 28, 2018

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Uncertain:1Benign:1Other:1

Dec 20, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: This variant has been reported in 4 papers in HGMD, that include affected and unaffected individuals. This variant is classified in ClinVar with 2 stars as VUS by Invitae, Ambry, GeneDx, and West China Hospital. The variant has a Max MAF of 0.13% in ExAC (12 East Asian alleles) and 0.1% in gnomAD (20 alleles). 19 non-mammals have an Asp at this position. -

Dec 12, 2020

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: BRCA1 c.824G>A (p.Gly275Asp) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00022 in 298510 control chromosomes, exclusively reported within the East Asian subpopulation at a frequency of 0.001 (in the gnomAD database and in Momozawa_2018). This frequency is comparable to the expected maximum frequency for a pathogenic variant in BRCA1 causing Hereditary Breast and Ovarian Cancer (0.001 vs 0.001), suggesting the variant could be a benign polymorphism found in populations from East Asia. In addition, the variant was reported in some East Asian subpopulations with even higher allele frequencies, e.g. in Koreans (0.0026, in gnomAD), and in Japanese (0.0012, in HGVD), further supporting a benign role for the variant. c.824G>A has been reported in the literature numerous individuals (generally in East Asians) affected with breast- and ovarian cancer and other tumor phenotypes (Carney_2010, Haffty_2009, Judkins_2005, Kato_2016, Kawahara_2004, Sakayori_2003, Shin_2016, Suter_2004, Zhong_2016, Bhaskaran_2019, Chan_2018, Choi_2018, Lee_2018, Park_2017), but was also found in several unaffected East Asian controls (Park_2017, Momozawa_2018). At-least two co-occurrences with another likely pathogenic variant (BRCA1 c.5165C>T, p.Ser1722Phe; Chan_2018) and a pathogenic variant (BRCA2 c.2808_2811delACAA, p.Ala938Profs, internal testing observation) have been observed, providing supporting evidence for a benign role. Two recent case-control association studies, involving breast cancer patients and controls of Korean- (Park_2017) and Japanese ancestry (Momozawa 2018), found that the variant is not associated with a significant increase in breast/ovarian cancer risk, and therefore the authors of these studies classified that the variant as likely benign/benign, respectively. In addition, in a study involving Korean breast cancer patients, multifactorial probability was estimated by performing systematic assessments of variants of unknown significance in the BRCA genes (which included analysis of co-occurrence with known deleterious mutations, personal and family history of cancer and tumor pathology) and predicted this variant to be likely benign (Lee_2018). To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Eleven other clinical diagnostic laboratories and one expert panel (ENIGMA) have provided clinical-significance assessments for this variant in ClinVar after 2014, and classified the variant as likely benign (n=5), benign (n=1, ENIGMA) and VUS (n=6). Several submitters cite overlapping evidence utilized in the context of this evaluation. Based on the absence of any actionable evidence supporting causality in over 15 years of review and co-occurrence with other pathogenic variants in the BRCA1/2 genes, further supported by an expert panel assessment as outlined above, the variant was re-classified as benign. -

Sep 19, 2013

ITMI

Significance:not provided

Review Status:no classification provided

Collection Method:reference population

- -

Hereditary cancer-predisposing syndrome

Benign:3

Jan 09, 2020

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Dec 14, 2020

Sema4, Sema4

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:curation

- -

Sep 17, 2024

Color Diagnostics, LLC DBA Color Health

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breast neoplasm

Uncertain:1

Nov 01, 2015

Laboratory of Molecular Diagnosis of Cancer, West China Hospital, Sichuan University

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

- -

Familial cancer of breast

Uncertain:1

Center for Precision Medicine, Meizhou People's Hospital

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Familial cancer of breast;C2676676:Breast-ovarian cancer, familial, susceptibility to, 1;C3280442:Pancreatic cancer, susceptibility to, 4;C4554406:Fanconi anemia, complementation group S

Benign:1

Oct 31, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary breast ovarian cancer syndrome;C2931038:Familial pancreatic carcinoma

Benign:1

Dec 02, 2024

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary breast ovarian cancer syndrome

Benign:1

Feb 04, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.33

BayesDel_addAF

Benign

-0.00074

BayesDel_noAF

Pathogenic

0.18

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.47

T;.;.;.;T;T;.;T

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Benign

0.55

LIST_S2

Uncertain

0.87

D;D;D;D;D;D;D;D

M_CAP

Uncertain

0.16

MetaRNN

Uncertain

0.47

T;T;T;T;T;T;T;T

MetaSVM

Uncertain

0.64

MutationAssessor

Pathogenic

3.7

H;H;.;.;.;.;.;.

PhyloP100

1.6

PrimateAI

Benign

0.46

PROVEAN

Pathogenic

-5.8

D;D;D;D;.;D;D;D

REVEL

Pathogenic

0.69

Sift

Uncertain

0.0020

D;D;D;D;.;D;D;D

Sift4G

Benign

0.37

T;T;T;D;.;D;.;D

Polyphen

1.0

D;.;.;D;.;.;.;.

Vest4

0.60

MutPred

0.74

Gain of helix (P = 0.0425);Gain of helix (P = 0.0425);.;Gain of helix (P = 0.0425);.;Gain of helix (P = 0.0425);.;Gain of helix (P = 0.0425);

MVP

0.93

MPC

0.52

ClinPred

0.54

GERP RS

3.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.46

gMVP

0.19

Mutation Taster

=0/100

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over