17-43094113-T-C

Position:

chr17-43094113-T-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_ModerateBP6_Very_Strong

The ENST00000357654.9(BRCA1):c.1418A>G(p.Asn473Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,614,110 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N473I) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

BRCA1
ENST00000357654.9 missense

Scores

Clinical Significance

Benign reviewed by expert panel U:2B:7

Conservation

PhyloP100: 0.949

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 links:

BRCA1 (HGNC:):

BRCA1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.22929466).

BP6

Variant 17-43094113-T-C is Benign according to our data. Variant chr17-43094113-T-C is described in ClinVar as [Benign]. Clinvar id is 54248.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr17-43094113-T-C is described in Lovd as [Benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BRCA1	NM_007294.4 linkuse as main transcript	c.1418A>G	p.Asn473Ser	missense_variant	10/23	ENST00000357654.9	NP_009225.1	P38398-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BRCA1	ENST00000357654.9 linkuse as main transcript	c.1418A>G	p.Asn473Ser	missense_variant	10/23	1	NM_007294.4	ENSP00000350283.3		P38398-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152182

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:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251268

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135794

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000821

AC:

AN:

1461810

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727194

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Benign

Submissions summary: Uncertain:2Benign:7

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Breast-ovarian cancer, familial, susceptibility to, 1

Uncertain:1Benign:2

Uncertain significance, no assertion criteria provided	clinical testing	Breast Cancer Information Core (BIC) (BRCA1)	Nov 25, 2004	- -
Benign, reviewed by expert panel	curation	Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA)	Aug 10, 2015	IARC class based on posterior probability from multifactorial likelihood analysis, thresholds for class as per Plon et al. 2008 (PMID: 18951446). Class 1 based on posterior probability = 0.00000337 -
Benign, criteria provided, single submitter	clinical testing	Counsyl	Oct 12, 2017	- -

Hereditary cancer-predisposing syndrome

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Jul 24, 2017	- -
Benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Nov 18, 2014	This alteration is classified as 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. -

not provided

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Department of Pathology and Laboratory Medicine, Sinai Health System

The BRCA1 p.Asn473Ser variant was identified in the literature however the frequency of this variant in an affected population was not provided (Easton 2007, Lindor 2012, van der Stoep 2009). Studies by Easton 2007 and Lindor 2012 predict this variant has a low probability of being deleterious. The variant was identified in the following databases: dbSNP (ID: rs80357057) as "With Uncertain significance, other allele", ClinVar (1x benign, reviewed by expert panel ENIGMA, 2x likely benign, 2x uncertain significance), Clinvitae, LOVD 3.0 (4x, predicted neutral), BIC Database (2x), and ARUP Laboratories (Not pathogenic or of no clinical significance). The variant was not identified in Cosmic, MutDB, or the Zhejiang Colon Cancer Database. The variant was identified in control databases in 4 of 277024 chromosomes at a frequency of 0.00001 (Genome Aggregation Database Feb 27, 2017). It was observed in the following populations: African in 1 of 24036 chromosomes (freq: 0.00004), Finnish in 1 of 25778 chromosomes (freq: 0.00004), and South Asian in 2 of 30778 chromosomes (freq: 0.00007). The variant was not observed in the â€šÃ„ÃºOtherâ€šÃ„Ã¹, Latino, European, Ashkenazi Jewish, or East Asian populations. The p.Asn473 residue is not conserved in mammals and four out of five computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein; however, this information is not predictive enough to rule out pathogenicity. The variant occurs outside of the splicing consensus sequence and 1 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Mar 02, 2016

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

BRCA1-related cancer predisposition

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Apr 16, 2024

- -

Hereditary breast ovarian cancer syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 05, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.028

BayesDel_noAF

Benign

-0.10

CADD

Benign

DANN

Benign

0.91

DEOGEN2

Uncertain

0.50

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

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.76

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.83

T;T;T;T;T;T;T;D;D

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.21

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

MetaSVM

Uncertain

0.16

MutationAssessor

Uncertain

2.3

M;M;.;.;.;.;.;.;.

MutationTaster

Benign

1.0

N;N;N;N;N;N;N;N;N;N;N;N;N;N

PrimateAI

Benign

0.25

PROVEAN

Uncertain

-3.8

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

REVEL

Uncertain

0.37

Sift

Benign

0.18

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

Sift4G

Benign

0.14

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

Polyphen

0.74

P;.;.;D;.;.;.;.;.

Vest4

0.37

MVP

0.81

MPC

0.072

ClinPred

0.068

GERP RS

2.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.039

gMVP

0.052

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over