chr7-2545020-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_152743.4(BRAT1):c.319G>A(p.Gly107Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000116 in 1,531,316 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 30)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

BRAT1
NM_152743.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.68

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 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRAT1	NM_152743.4 link	c.319G>A	p.Gly107Arg	missense_variant	Exon 4 of 14	ENST00000340611.9	NP_689956.2	Q6PJG6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
BRAT1	ENST00000340611.9 link	c.319G>A	p.Gly107Arg	missense_variant	Exon 4 of 14	1	NM_152743.4	ENSP00000339637.4	Q6PJG6-1
BRAT1	ENST00000467558.5 link	n.335G>A		non_coding_transcript_exon_variant	Exon 3 of 10	5
BRAT1	ENST00000469750.5 link	n.543G>A		non_coding_transcript_exon_variant	Exon 4 of 11	2
BRAT1	ENST00000421712.1 link	n.283-1058G>A		intron_variant	Intron 2 of 4	3		ENSP00000409209.2	F8WDN5

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000122

AC:

AN:

164030

Hom.:

AF XY:

0.0000225

AC XY:

AN XY:

88908

show subpopulations

Gnomad AFR exome

AF:

0.0000907

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:

0.0000133

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000125

AC:

172

AN:

1379126

Hom.:

Cov.:

AF XY:

0.000120

AC XY:

AN XY:

677638

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000156

Gnomad4 OTH exome

AF:

0.0000880

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152190

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74350

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

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:

0.0000712

Hom.:

Bravo

AF:

0.0000264

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000519

AC:

ExAC

AF:

0.0000167

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Neonatal-onset encephalopathy with rigidity and seizures

Uncertain:2

Mar 01, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 107 of the BRAT1 protein (p.Gly107Arg). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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: 580319). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest 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. -

Jan 08, 2018

Centogene AG - the Rare Disease Company

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Uncertain:1

Dec 06, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.319G>A (p.G107R) alteration is located in exon 4 (coding exon 3) of the BRAT1 gene. This alteration results from a G to A substitution at nucleotide position 319, causing the glycine (G) at amino acid position 107 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.54

BayesDel_addAF

Uncertain

0.099

BayesDel_noAF

Benign

-0.10

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.032

Eigen

Benign

-0.20

Eigen_PC

Benign

-0.32

FATHMM_MKL

Uncertain

0.76

LIST_S2

Benign

0.76

M_CAP

Benign

0.030

MetaRNN

Uncertain

0.50

MetaSVM

Uncertain

-0.20

MutationAssessor

Benign

1.9

PrimateAI

Uncertain

0.63

PROVEAN

Uncertain

-2.5

REVEL

Uncertain

0.44

Sift

Uncertain

0.015

Sift4G

Uncertain

0.026

Polyphen

0.60

Vest4

0.62

MutPred

0.40

Gain of methylation at G107 (P = 0.0362);

MVP

0.80

MPC

0.12

ClinPred

0.18

GERP RS

2.5

Varity_R

0.075

gMVP

0.56

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