7-2542142-C-T

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_152743.4(BRAT1):​c.993G>A​(p.Thr331Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00248 in 1,565,760 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0060 ( 6 hom., cov: 32)
Exomes 𝑓: 0.0021 ( 7 hom. )

Consequence

BRAT1
NM_152743.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -3.67

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: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 7-2542142-C-T is Benign according to our data. Variant chr7-2542142-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 472985.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-3.67 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00598 (911/152230) while in subpopulation AFR AF = 0.0158 (655/41536). AF 95% confidence interval is 0.0148. There are 6 homozygotes in GnomAd4. There are 438 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 6 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRAT1NM_152743.4 linkc.993G>A p.Thr331Thr synonymous_variant Exon 7 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.993G>A p.Thr331Thr synonymous_variant Exon 7 of 14 1 NM_152743.4 ENSP00000339637.4 Q6PJG6-1

Frequencies

GnomAD3 genomes
AF:
0.00601
AC:
914
AN:
152112
Hom.:
6
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0158
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00216
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.00574
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00231
Gnomad OTH
AF:
0.00239
GnomAD2 exomes
AF:
0.00246
AC:
438
AN:
178246
AF XY:
0.00222
show subpopulations
Gnomad AFR exome
AF:
0.0125
Gnomad AMR exome
AF:
0.000716
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00775
Gnomad NFE exome
AF:
0.00201
Gnomad OTH exome
AF:
0.00107
GnomAD4 exome
AF:
0.00211
AC:
2978
AN:
1413530
Hom.:
7
Cov.:
32
AF XY:
0.00204
AC XY:
1428
AN XY:
699174
show subpopulations
African (AFR)
AF:
0.0150
AC:
484
AN:
32290
American (AMR)
AF:
0.00102
AC:
38
AN:
37430
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24872
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37422
South Asian (SAS)
AF:
0.0000500
AC:
4
AN:
80080
European-Finnish (FIN)
AF:
0.00615
AC:
304
AN:
49470
Middle Eastern (MID)
AF:
0.000355
AC:
2
AN:
5638
European-Non Finnish (NFE)
AF:
0.00185
AC:
2008
AN:
1087870
Other (OTH)
AF:
0.00236
AC:
138
AN:
58458
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
157
314
472
629
786
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
84
168
252
336
420
<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
AF:
0.00598
AC:
911
AN:
152230
Hom.:
6
Cov.:
32
AF XY:
0.00589
AC XY:
438
AN XY:
74416
show subpopulations
African (AFR)
AF:
0.0158
AC:
655
AN:
41536
American (AMR)
AF:
0.00209
AC:
32
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4820
European-Finnish (FIN)
AF:
0.00574
AC:
61
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00231
AC:
157
AN:
68000
Other (OTH)
AF:
0.00236
AC:
5
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
46
92
138
184
230
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00388
Hom.:
3
Bravo
AF:
0.00587
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Feb 06, 2024
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nov 20, 2017
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Neonatal-onset encephalopathy with rigidity and seizures Benign:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Neonatal-onset encephalopathy with rigidity and seizures;C4748032:Neurodevelopmental disorder with cerebellar atrophy and with or without seizures Benign:1
Oct 13, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Aug 14, 2018
GeneDx
Significance: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
0.20
DANN
Benign
0.48
PhyloP100
-3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=100/0
polymorphism

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: rs76646873; hg19: chr7-2581776; API