7-2538086-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_152743.4(BRAT1):c.2449G>A(p.Glu817Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000381 in 1,573,990 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

BRAT1
NM_152743.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 2.50

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20729744).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BRAT1	NM_152743.4 linkuse as main transcript	c.2449G>A	p.Glu817Lys	missense_variant	14/14	ENST00000340611.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BRAT1	ENST00000340611.9 linkuse as main transcript	c.2449G>A	p.Glu817Lys	missense_variant	14/14	1	NM_152743.4	P1	Q6PJG6-1
BRAT1	ENST00000467558.5 linkuse as main transcript	n.4235G>A		non_coding_transcript_exon_variant	10/10	5
BRAT1	ENST00000469750.5 linkuse as main transcript	n.5021G>A		non_coding_transcript_exon_variant	11/11	2
BRAT1	ENST00000493232.5 linkuse as main transcript	n.5155G>A		non_coding_transcript_exon_variant	3/3	2

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000758

AC:

AN:

224224

Hom.:

AF XY:

0.0000816

AC XY:

AN XY:

122588

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000313

Gnomad ASJ exome

AF:

0.000126

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000114

Gnomad FIN exome

AF:

0.000495

Gnomad NFE exome

AF:

0.00000997

Gnomad OTH exome

AF:

0.000181

GnomAD4 exome

AF:

0.0000352

AC:

AN:

1421646

Hom.:

Cov.:

AF XY:

0.0000456

AC XY:

AN XY:

701020

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000238

Gnomad4 ASJ exome

AF:

0.0000416

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000110

Gnomad4 FIN exome

AF:

0.000410

Gnomad4 NFE exome

AF:

0.0000156

Gnomad4 OTH exome

AF:

0.0000171

GnomAD4 genome

AF:

0.0000656

AC:

AN:

152344

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000162

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000498

AC:

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

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Oct 25, 2022

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 817 of the BRAT1 protein (p.Glu817Lys). This variant is present in population databases (rs761588914, gnomAD 0.04%). 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: 642917). Advanced 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 at Invitae 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 BRAT1 protein function. 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

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Sep 23, 2022

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.085

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.49

Cadd

Benign

Dann

Benign

0.96

DEOGEN2

Benign

0.076

Eigen

Benign

-0.53

Eigen_PC

Benign

-0.56

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.54

M_CAP

Benign

0.013

MetaRNN

Benign

0.21

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

MutationTaster

Benign

0.98

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-2.4

REVEL

Benign

0.051

Sift

Benign

0.083

Sift4G

Benign

0.27

Polyphen

0.70

Vest4

0.50

MutPred

0.28

Gain of ubiquitination at E817 (P = 0.0121);

MVP

0.20

MPC

0.071

ClinPred

0.088

GERP RS

2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.048

gMVP

0.31

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