Genetic Variant BRAT1:p.Pro460Pro (chr7-2540994-G-C) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_152743.4(BRAT1):c.1380C>G(p.Pro460Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000286 in 1,400,722 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 Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. P460P) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

BRAT1
NM_152743.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -3.98

Publications

0 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

BRAT1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.87).

BP6

Variant 7-2540994-G-C is Benign according to our data. Variant chr7-2540994-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 1132502.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-3.98 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRAT1	NM_152743.4 link	c.1380C>G	p.Pro460Pro	synonymous_variant	Exon 10 of 14	ENST00000340611.9	NP_689956.2	Q6PJG6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BRAT1	ENST00000340611.9 link	c.1380C>G	p.Pro460Pro	synonymous_variant	Exon 10 of 14	1	NM_152743.4	ENSP00000339637.4		Q6PJG6-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000215

AC:

AN:

186342

AF XY:

0.0000289

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000214

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000286

AC:

AN:

1400722

Hom.:

Cov.:

AF XY:

0.00000431

AC XY:

AN XY:

695990

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29216

American (AMR)

AF:

0.000144

AC:

AN:

27780

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23354

East Asian (EAS)

AF:

0.00

AC:

AN:

36682

South Asian (SAS)

AF:

0.00

AC:

AN:

76074

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51436

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5184

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1093312

Other (OTH)

AF:

0.00

AC:

AN:

57684

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Neonatal-onset encephalopathy with rigidity and seizures

Benign:1

Mar 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

0.13

(source)

DANN

Benign

0.37

PhyloP100

-4.0

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

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7-2540994-G-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over