rs4988349

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_032043.3(BRIP1):​c.1619A>T​(p.Gln540Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000174 in 1,612,486 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

BRIP1
NM_032043.3 missense

Scores

9
10

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:9B:2

Conservation

PhyloP100: 6.67
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.16024593).
BP6
Variant 17-61784279-T-A is Benign according to our data. Variant chr17-61784279-T-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 142473.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=9}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRIP1NM_032043.3 linkc.1619A>T p.Gln540Leu missense_variant Exon 11 of 20 ENST00000259008.7 NP_114432.2 Q9BX63-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRIP1ENST00000259008.7 linkc.1619A>T p.Gln540Leu missense_variant Exon 11 of 20 1 NM_032043.3 ENSP00000259008.2 Q9BX63-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152226
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
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
GnomAD3 exomes
AF:
0.0000358
AC:
9
AN:
251070
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135688
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000794
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:
0.000163
GnomAD4 exome
AF:
0.0000164
AC:
24
AN:
1460260
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
726470
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000689
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152226
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74378
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000110
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:9Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Familial cancer of breast Uncertain:3
Oct 26, 2021
MGZ Medical Genetics Center
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 01, 2023
Myriad Genetics, Inc.
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

Mar 12, 2024
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:2Benign:1
May 15, 2021
Sema4, Sema4
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Nov 14, 2022
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.Q540L variant (also known as c.1619A>T), located in coding exon 10 of the BRIP1 gene, results from an A to T substitution at nucleotide position 1619. The glutamine at codon 540 is replaced by leucine, an amino acid with dissimilar properties. This alteration has been reported in 1/21 BRCA1/2-negative individuals with a personal and family history of breast cancer; however, it was not found in seven of the proband's relatives, including three relatives with breast cancer (Rutter JL et al. Hum. Mutat. 2003 Aug;22:121-8). This alteration has also been reported in a cohort of 48143 individuals diagnosed with invasive breast cancer before the age of 55 years and was not observed in 43608 control subjects (Easton DF et al. J. Med. Genet. 2016 May;53:298-309). In another study, this alteration was observed in 0/706 cases with ovarian cancer, 0/6,341 cases with breast cancer and in 1/36,687 controls (Weber-Lassalle N et al. Breast Cancer Res. 2018 Jan;20:7). In one study, this alteration was detected in 1/2160 early-onset breast cancer cases and 1/1,199 ovarian cancer cases; the patient with ovarian cancer also had a pathogenic alteration in BRCA1 or BRCA2 (Moyer CL et al. Cancer Res. 2020 Feb;80:857-867). This amino acid position is not well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Jul 12, 2016
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Familial cancer of breast;C1836860:Fanconi anemia complementation group J Uncertain:1Benign:1
Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 31, 2018
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Uncertain:1
Nov 24, 2017
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: The BRIP1 c.1619A>T (p.Gln540Leu) variant involves the alteration of a conserved nucleotide and 2/4 in silico tools predict a benign outcome for this variant (SNPsandGO not captured due to low reliability index). However, these predictions have yet to be functionally assessed. This variant was found in 7/349872 control chromosomes (gnomAD), predominantly observed in the Ashkenazi Jewish subpopulation at a frequency of 0.000712 (7/9838). This frequency is about 11 times the estimated maximal expected allele frequency of a pathogenic BRIP1 variant (0.0000625), suggesting this is likely a benign polymorphism found primarily in those of Ashkenazi Jewish origin. A publication, Rutter_2003, indicates the variant was found in a Breast Cancer family, which three affected family members did not carry the variant of interest showing lack of cosegregation. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as uncertain significance. Taken together, this variant is classified as a "Variant of Uncertain Significance - Possibly Benign." -

Ovarian neoplasm;C1836860:Fanconi anemia complementation group J Uncertain:1
Oct 04, 2017
Counsyl
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Uncertain:1
Nov 19, 2023
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 26659599, 31822495, 12872252, 26921362, 19584272, 27527004, 29368626, 36845387) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Uncertain
0.045
T
BayesDel_noAF
Benign
-0.17
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.40
T;.
Eigen
Uncertain
0.31
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.77
T;T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.16
T;T
MetaSVM
Benign
-0.44
T
MutationAssessor
Uncertain
2.4
M;M
PrimateAI
Benign
0.41
T
PROVEAN
Uncertain
-4.0
D;.
REVEL
Uncertain
0.36
Sift
Benign
0.085
T;.
Sift4G
Benign
0.11
T;T
Polyphen
0.65
P;.
Vest4
0.27
MVP
0.88
MPC
0.19
ClinPred
0.46
T
GERP RS
5.4
Varity_R
0.25
gMVP
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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.

Other links and lift over

dbSNP: rs4988349; hg19: chr17-59861640; COSMIC: COSV105864511; COSMIC: COSV105864511; API