rs760887592

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_032043.3(BRIP1):​c.2464T>C​(p.Tyr822His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,607,178 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. Y822C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

BRIP1
NM_032043.3 missense

Scores

14
4
1

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 8.68

Publications

2 publications found
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 Gene-Disease associations (from GenCC):
  • familial ovarian cancer
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • Fanconi anemia
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Illumina
  • Fanconi anemia complementation group J
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • hereditary breast carcinoma
    Inheritance: AD Classification: STRONG, LIMITED, NO_KNOWN Submitted by: ClinGen, Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • colorectal adenoma
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 38 uncertain in NM_032043.3
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.878

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRIP1NM_032043.3 linkc.2464T>C p.Tyr822His missense_variant Exon 17 of 20 ENST00000259008.7 NP_114432.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRIP1ENST00000259008.7 linkc.2464T>C p.Tyr822His missense_variant Exon 17 of 20 1 NM_032043.3 ENSP00000259008.2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152152
Hom.:
0
Cov.:
31
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000400
AC:
1
AN:
250042
AF XY:
0.00000739
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000551
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1455026
Hom.:
0
Cov.:
30
AF XY:
0.00000276
AC XY:
2
AN XY:
723868
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33346
American (AMR)
AF:
0.00
AC:
0
AN:
44516
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26022
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39402
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85226
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53144
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5746
European-Non Finnish (NFE)
AF:
0.00000181
AC:
2
AN:
1107558
Other (OTH)
AF:
0.00
AC:
0
AN:
60066
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152152
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:2
Nov 07, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Y822H variant (also known as c.2464T>C), located in coding exon 16 of the BRIP1 gene, results from a T to C substitution at nucleotide position 2464. The tyrosine at codon 822 is replaced by histidine, an amino acid with similar properties. This alteration was detected in 1/101,759 breast cancer cases and 0/15,587 ovarian cancer cases, and in an inter-strand cross link damage survival assay, this alteration was found to be functionally hypomorphic (Moyer CL et al. Cancer Res. 2020 Feb;80:857-867). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Feb 05, 2024
Color Diagnostics, LLC DBA Color Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces tyrosine with histidine at codon 822 of the BRIP1 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function. A functional study has shown that the variant protein partially rescued cells in response to DNA damage in a cell viability assay (PMID: 31822495). This variant has been reported in an individual affected with breast cancer (PMID: 31822495). This variant has been identified in 1/250042 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. -

not specified Uncertain:1
Mar 25, 2024
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: BRIP1 c.2464T>C (p.Tyr822His) results in a conservative amino acid change located in the ATP-dependent helicase, C-terminal domain (IPR006555) of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4e-06 in 250042 control chromosomes (gnomAD). c.2464T>C has been reported in the literature in individuals affected with Breast Cancer without strong evidence of causality (Weber-Lassalle_2018, Moyer_2020). These reports do not provide unequivocal conclusions about association of the variant with Breast Cancer. At least one publication reports experimental evidence evaluating an impact on protein function, finding that the variant does not fully rescue interstrand cross-link activity and was considered hypomorphic (Moyer_2020). The following publications have been ascertained in the context of this evaluation (PMID: 31822495, 29368626). ClinVar contains an entry for this variant (Variation ID: 216788). Based on the evidence outlined above, the variant was classified as VUS-possibly pathogenic. -

Familial cancer of breast;C1836860:Fanconi anemia complementation group J Uncertain:1
Dec 12, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces tyrosine, which is neutral and polar, with histidine, which is basic and polar, at codon 822 of the BRIP1 protein (p.Tyr822His). This variant is present in population databases (rs760887592, gnomAD 0.006%). This missense change has been observed in individual(s) with breast cancer (PMID: 29368626, 31822495). ClinVar contains an entry for this variant (Variation ID: 216788). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on BRIP1 protein function. Experimental studies have shown that this missense change affects BRIP1 function (PMID: 31822495). 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. -

Familial cancer of breast Uncertain:1
Jul 29, 2023
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.85
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.44
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D;.
Eigen
Pathogenic
0.77
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Pathogenic
0.36
D
MetaRNN
Pathogenic
0.88
D;D
MetaSVM
Pathogenic
0.83
D
MutationAssessor
Uncertain
2.4
M;M
PhyloP100
8.7
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-4.4
D;.
REVEL
Pathogenic
0.85
Sift
Pathogenic
0.0
D;.
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.88
MutPred
0.46
Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);
MVP
0.96
MPC
0.78
ClinPred
1.0
D
GERP RS
5.6
Varity_R
0.94
gMVP
0.75
Mutation Taster
=49/51
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs760887592; hg19: chr17-59793340; API