Variant 17-61780930-ATT-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_032043.3(BRIP1):c.1702_1703delAA(p.Asn568fs) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,790 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

BRIP1
NM_032043.3 frameshift

Scores

Not classified

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:9

Conservation

PhyloP100: 3.55

Variant links:

Genes affected

BRIP1 (HGNC:20473): (BRCA1 interacting helicase 1) The protein encoded by this gene is a member of the RecQ DEAH helicase family and interacts with the BRCT repeats of breast cancer, type 1 (BRCA1). The bound complex is important in the normal double-strand break repair function of breast cancer, type 1 (BRCA1). This gene may be a target of germline cancer-inducing mutations. [provided by RefSeq, Jul 2008]

BRIP1 links:

BRIP1 (HGNC:):

BRIP1 links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 17-61780930-ATT-A is Pathogenic according to our data. Variant chr17-61780930-ATT-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 221621.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BRIP1	NM_032043.3 linkuse as main transcript	c.1702_1703delAA	p.Asn568fs	frameshift_variant	12/20	ENST00000259008.7	NP_114432.2	Q9BX63-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BRIP1	ENST00000259008.7 linkuse as main transcript	c.1702_1703delAA	p.Asn568fs	frameshift_variant	12/20	1	NM_032043.3	ENSP00000259008.2		Q9BX63-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251398

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135878

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461790

Hom.:

AF XY:

0.00000275

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Familial cancer of breast;C1836860:Fanconi anemia complementation group J

Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Nov 27, 2023	This sequence change creates a premature translational stop signal (p.Asn568Trpfs*9) in the BRIP1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in BRIP1 are known to be pathogenic (PMID: 16116423, 17033622, 21964575). This variant is present in population databases (no rsID available, gnomAD 0.003%). This premature translational stop signal has been observed in individual(s) with colorectal cancer and ovarian cancer (PMID: 21964575, 25058500). ClinVar contains an entry for this variant (Variation ID: 221621). For these reasons, this variant has been classified as Pathogenic. -
Likely pathogenic, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Jul 27, 2021	- -

Familial cancer of breast

Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Baylor Genetics	Oct 18, 2023	- -
Pathogenic, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Feb 27, 2023	This variant is considered pathogenic. This variant creates a frameshift predicted to result in premature protein truncation. -

Hereditary cancer-predisposing syndrome

Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Ambry Genetics	Jul 14, 2023	The c.1702_1703delAA pathogenic mutation, located in coding exon 11 of the BRIP1 gene, results from a deletion of two nucleotides at nucleotide positions 1702 to 1703, causing a translational frameshift with a predicted alternate stop codon (p.N568Wfs*9). In one study, this mutation was reported in 2/144 Spanish individuals with ovarian cancer, 6/927 Spanish individuals with breast cancer, and 1/1780 controls (Rafnar T et al. Nat. Genet. 2011 Nov; 43(11):1104-7). This alteration was also reported in Spanish male diagnosed with colon cancer at age 80 who had a family history of colon, stomach, and bladder cancer (Esteban-Jurado C et al. Genet. Med. 2015 Feb; 17(2):131-42; Esteban-Jurado C et al. Eur. J. Hum. Genet. 2016 Oct;24:1501-5) and in an individual diagnosed with breast cancer at 32 (Bonache S et al. J. Cancer Res. Clin. Oncol., 2018 Dec;144:2495-2513). In addition to the clinical data presented in the literature, this alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation. -
Pathogenic, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Jun 27, 2023	This variant deletes 2 nucleotides in exon 12 of the BRIP1 gene, creating a frameshift and premature translation stop signal. This variant is expected to result in an absent or non-functional protein product. This variant has been reported in two individuals affected with ovarian cancer (PMID: 21964575) and eight individuals affected with breast cancer (PMID: 21964575, 30306255, 31786208), as well as in an individual with colorectal cancer (PMID: 27165003). This variant has been identified in 1/251398 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of BRIP1 function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Pathogenic. -

Carcinoma of colon

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Genetic Predisposition to Colorectal Cancer Group, Institut d’Investigacions Biomediques August Pi i Sunyer

Nov 01, 2015

Variant detected by whole exome sequencing in a family presenting aggregation mainly for colorectal cancer but also for gastric cancer -

Ovarian neoplasm;C1836860:Fanconi anemia complementation group J

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Counsyl

Jun 05, 2018

- -

not provided

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Sep 07, 2016

This deletion of two nucleotides in BRIP1 is denoted c.1702_1703delAA at the cDNA level and p.Asn568TrpfsX9 (N568WfsX9) at the protein level. The normal sequence, with the bases that are deleted in braces, is CAAA[AA]TGGG. The deletion causes a frameshift which changes an Asparagine to a Tryptophan at codon 568, and creates a premature stop codon at position 9 of the new reading frame. This variant is predicted to cause loss of normal protein function through either protein truncation or nonsense-mediated mRNA decay. BRIP1 c.1702_1703delAA has been observed in individuals with ovarian, breast and colorectal cancer (Rafnar 2011, Esteban-Jurado 2015). Based on the currently available information, we consider this deletion to be a likely pathogenic variant. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

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

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