chr17-61683942-C-T

Position:

chr17-61683942-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_032043.3(BRIP1):c.3104G>A(p.Arg1035His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,613,974 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1035C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

BRIP1
NM_032043.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:9

Conservation

PhyloP100: 1.50

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.121292055).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BRIP1	NM_032043.3 linkuse as main transcript	c.3104G>A	p.Arg1035His	missense_variant	20/20	ENST00000259008.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BRIP1	ENST00000259008.7 linkuse as main transcript	c.3104G>A	p.Arg1035His	missense_variant	20/20	1	NM_032043.3	P2	Q9BX63-1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152104

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251452

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135894

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000178

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.0000936

Gnomad4 NFE exome

AF:

0.0000162

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152104

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000987

Hom.:

Bravo

AF:

0.0000302

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Nov 25, 2023	Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 28678401, 29636988, 11301010, 27978560) -
Uncertain significance, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	Jul 20, 2023	In the published literature, this variant has been reported in an individual with head and neck squamous cell carcinoma, in an individual with colon cancer, in individuals with breast cancer and in an unaffected control (PMIDs: 27978560 (2016), 28678401 (2017), and 33471991 (2021)). The frequency of this variant in the general population, 0.000031 (4/129142 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is uninformative in the assessment of its pathogenicity. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded predictions that this variant is benign. Based on the available information, we are unable to determine the clinical significance of this variant. -

Hereditary cancer-predisposing syndrome

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Nov 01, 2022	This missense variant replaces arginine with histidine at codon 1035 of the BRIP1 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in one individual with colorectal cancer (PMID: 27978560). In a large breast cancer case-control study, this variant was identified in 2/60464 cases and 1/53460 controls (OR=1.768, 95%CI 0.16 to 19.503; p-value=1 (Leiden Open Variation Database DB-ID BRIP1_000314) (PMID: 33471991). This variant has been identified in 5/282814 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	Sep 14, 2023	The p.R1035H variant (also known as c.3104G>A), located in coding exon 19 of the BRIP1 gene, results from a G to A substitution at nucleotide position 3104. The arginine at codon 1035 is replaced by histidine, an amino acid with highly similar properties. This alteration was detected in 1/450 probands from a cohort of individuals with early-onset colorectal cancer referred for multi-gene panel testing (Pearlman R et al. JAMA Oncol 2017 Apr;3(4):464-471). This alteration was also detected in an individual diagnosed with head and neck squamous cell carcinoma (Chandrasekharappa SC et al. Cancer, 2017 Oct;123:3943-3954). This amino acid position is poorly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Familial cancer of breast

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Mar 02, 2023	This variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -
Uncertain significance, criteria provided, single submitter	clinical testing	Baylor Genetics	Mar 05, 2024	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

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

Aug 04, 2022

Variant summary: BRIP1 c.3104G>A (p.Arg1035His) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 1.6e-05 in 251452 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.3104G>A has been reported in the literature in an individual affected with Colon Cancer (Pearlman_2017). This report does not provide an unequivocal conclusion about association of the variant with Hereditary Breast and Ovarian Cancer. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Six ClinVar submitters (evaluation after 2014) cite the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -

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

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 01, 2024

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1035 of the BRIP1 protein (p.Arg1035His). This variant is present in population databases (rs367816363, gnomAD 0.004%). This missense change has been observed in individual(s) with colon cancer (PMID: 27978560). ClinVar contains an entry for this variant (Variation ID: 128183). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Ovarian neoplasm;C1836860:Fanconi anemia complementation group J

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Counsyl

Mar 27, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.084

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.076

Eigen

Benign

-0.75

Eigen_PC

Benign

-0.68

FATHMM_MKL

Benign

0.031

LIST_S2

Benign

0.55

M_CAP

Benign

0.064

MetaRNN

Benign

0.12

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.0

MutationTaster

Benign

1.0

PrimateAI

Benign

0.21

PROVEAN

Benign

-0.29

REVEL

Benign

0.15

Sift

Uncertain

0.027

Sift4G

Benign

0.12

Polyphen

0.10

Vest4

0.071

MVP

0.73

MPC

0.26

ClinPred

0.17

GERP RS

4.7

Varity_R

0.029

gMVP

0.13

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