rs148923187

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_152743.4(BRAT1):​c.1421C>T​(p.Thr474Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000579 in 1,589,544 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. T474T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

BRAT1
NM_152743.4 missense

Scores

6
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 3.02

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: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.06699732).
BP6
Variant 7-2539863-G-A is Benign according to our data. Variant chr7-2539863-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 472941.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BRAT1NM_152743.4 linkc.1421C>T p.Thr474Met missense_variant Exon 11 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.1421C>T p.Thr474Met missense_variant Exon 11 of 14 1 NM_152743.4 ENSP00000339637.4 Q6PJG6-1

Frequencies

GnomAD3 genomes
AF:
0.000276
AC:
42
AN:
152198
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000868
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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
GnomAD2 exomes
AF:
0.0000568
AC:
12
AN:
211254
AF XY:
0.0000435
show subpopulations
Gnomad AFR exome
AF:
0.000862
Gnomad AMR exome
AF:
0.00
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:
0.0000348
AC:
50
AN:
1437228
Hom.:
0
Cov.:
32
AF XY:
0.0000364
AC XY:
26
AN XY:
713864
show subpopulations
African (AFR)
AF:
0.00108
AC:
35
AN:
32524
American (AMR)
AF:
0.0000254
AC:
1
AN:
39380
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24646
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39242
South Asian (SAS)
AF:
0.00
AC:
0
AN:
82378
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52134
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5646
European-Non Finnish (NFE)
AF:
0.00000907
AC:
10
AN:
1102056
Other (OTH)
AF:
0.0000675
AC:
4
AN:
59222
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
4
7
11
14
18
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
AF:
0.000276
AC:
42
AN:
152316
Hom.:
0
Cov.:
33
AF XY:
0.000215
AC XY:
16
AN XY:
74480
show subpopulations
African (AFR)
AF:
0.000866
AC:
36
AN:
41578
American (AMR)
AF:
0.000196
AC:
3
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000161
Hom.:
0
Bravo
AF:
0.000340
ESP6500AA
AF:
0.000910
AC:
4
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000745
AC:
9

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Dec 05, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1421C>T (p.T474M) alteration is located in exon 11 (coding exon 10) of the BRAT1 gene. This alteration results from a C to T substitution at nucleotide position 1421, causing the threonine (T) at amino acid position 474 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1
Feb 08, 2023
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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

Neonatal-onset encephalopathy with rigidity and seizures Benign:1
Jan 29, 2025
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
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.010
T
Eigen
Uncertain
0.23
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.80
T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.067
T
MetaSVM
Benign
-0.62
T
MutationAssessor
Uncertain
2.0
M
PhyloP100
3.0
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.11
Sift
Benign
0.14
T
Sift4G
Benign
0.21
T
Polyphen
0.98
D
Vest4
0.41
MVP
0.71
MPC
0.28
ClinPred
0.087
T
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.050
gMVP
0.34
Mutation Taster
=91/9
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: rs148923187; hg19: chr7-2579497; API