7-2538080-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_152743.4(BRAT1):​c.2455G>A​(p.Asp819Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000106 in 1,414,118 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 (★★). Synonymous variant affecting the same amino acid position (i.e. D819D) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

BRAT1
NM_152743.4 missense

Scores

4
9
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 5.87

Publications

1 publications found
Variant links:
Genes affected
BRAT1 (HGNC:21701): (BRCA1 associated ATM activator 1) The protein encoded by this ubiquitously expressed gene interacts with the tumor suppressing BRCA1 (breast cancer 1) protein and and the ATM (ataxia telangiectasia mutated) protein. ATM is thought to be a master controller of cell cycle checkpoint signalling pathways that are required for cellular responses to DNA damage such as double-strand breaks that are induced by ionizing radiation and complexes with BRCA1 in the multi-protein complex BASC (BRAC1-associated genome surveillance complex). The protein encoded by this gene is thought to play a role in the DNA damage pathway regulated by BRCA1 and ATM. [provided by RefSeq, Mar 2012]
BRAT1 Gene-Disease associations (from GenCC):
  • neonatal-onset encephalopathy with rigidity and seizures
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, ClinGen, G2P, Labcorp Genetics (formerly Invitae)
  • neurodevelopmental disorder with cerebellar atrophy and with or without seizures
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen, Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.813

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRAT1NM_152743.4 linkc.2455G>A p.Asp819Asn missense_variant Exon 14 of 14 ENST00000340611.9 NP_689956.2 Q6PJG6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BRAT1ENST00000340611.9 linkc.2455G>A p.Asp819Asn missense_variant Exon 14 of 14 1 NM_152743.4 ENSP00000339637.4 Q6PJG6-1
BRAT1ENST00000467558.5 linkn.4241G>A non_coding_transcript_exon_variant Exon 10 of 10 5
BRAT1ENST00000469750.5 linkn.5027G>A non_coding_transcript_exon_variant Exon 11 of 11 2
BRAT1ENST00000493232.5 linkn.5161G>A non_coding_transcript_exon_variant Exon 3 of 3 2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.0000459
AC:
10
AN:
217752
AF XY:
0.0000338
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000174
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000512
Gnomad OTH exome
AF:
0.000186
GnomAD4 exome
AF:
0.0000106
AC:
15
AN:
1414118
Hom.:
0
Cov.:
31
AF XY:
0.0000101
AC XY:
7
AN XY:
696390
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32480
American (AMR)
AF:
0.00
AC:
0
AN:
41256
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
23432
East Asian (EAS)
AF:
0.0000513
AC:
2
AN:
39000
South Asian (SAS)
AF:
0.0000372
AC:
3
AN:
80582
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50840
Middle Eastern (MID)
AF:
0.000179
AC:
1
AN:
5574
European-Non Finnish (NFE)
AF:
0.00000739
AC:
8
AN:
1082694
Other (OTH)
AF:
0.0000172
AC:
1
AN:
58260
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000249
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Neonatal-onset encephalopathy with rigidity and seizures Uncertain:1
Aug 16, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 819 of the BRAT1 protein (p.Asp819Asn). This variant is present in population databases (rs766501904, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with BRAT1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1426607). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C15"). 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. -

not provided Uncertain:1
Apr 01, 2020
Revvity Omics, Revvity
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
Uncertain
0.44
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.29
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.33
T
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.63
T
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.81
D
MetaSVM
Benign
-0.53
T
MutationAssessor
Uncertain
2.6
M
PhyloP100
5.9
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-3.1
D
REVEL
Uncertain
0.38
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.90
MutPred
0.49
Loss of disorder (P = 0.0815);
MVP
0.60
MPC
0.31
ClinPred
0.79
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.58
gMVP
0.64
Mutation Taster
=76/24
polymorphism

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

Other links and lift over

dbSNP: rs766501904; hg19: chr7-2577714; API