chr6-32976246-C-G

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_005104.4(BRD2):​c.611-4C>G variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00434 in 1,605,152 control chromosomes in the GnomAD database, including 34 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0025 ( 4 hom., cov: 32)
Exomes 𝑓: 0.0045 ( 30 hom. )

Consequence

BRD2
NM_005104.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00001694
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -3.53
Variant links:
Genes affected
BRD2 (HGNC:1103): (bromodomain containing 2) This gene encodes a transcriptional regulator that belongs to the BET (bromodomains and extra terminal domain) family of proteins. This protein associates with transcription complexes and with acetylated chromatin during mitosis, and it selectively binds to the acetylated lysine-12 residue of histone H4 via its two bromodomains. The gene maps to the major histocompatability complex (MHC) class II region on chromosome 6p21.3, but sequence comparison suggests that the protein is not involved in the immune response. This gene has been implicated in juvenile myoclonic epilepsy, a common form of epilepsy that becomes apparent in adolescence. Multiple alternatively spliced variants have been described for this gene. [provided by RefSeq, Dec 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
This place is a probable branch point but likely benign (scored 1 / 10). Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 6-32976246-C-G is Benign according to our data. Variant chr6-32976246-C-G is described in ClinVar as [Benign]. Clinvar id is 770728.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr6-32976246-C-G is described in Lovd as [Likely_benign].
BS2
High Homozygotes in GnomAd4 at 4 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BRD2NM_005104.4 linkuse as main transcriptc.611-4C>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000374825.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BRD2ENST00000374825.9 linkuse as main transcriptc.611-4C>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_005104.4 P2P25440-1

Frequencies

GnomAD3 genomes
AF:
0.00249
AC:
378
AN:
151828
Hom.:
4
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00128
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00111
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00446
Gnomad OTH
AF:
0.00191
GnomAD3 exomes
AF:
0.00235
AC:
567
AN:
240906
Hom.:
2
AF XY:
0.00228
AC XY:
299
AN XY:
131412
show subpopulations
Gnomad AFR exome
AF:
0.00134
Gnomad AMR exome
AF:
0.00131
Gnomad ASJ exome
AF:
0.000208
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000417
Gnomad NFE exome
AF:
0.00438
Gnomad OTH exome
AF:
0.00272
GnomAD4 exome
AF:
0.00453
AC:
6583
AN:
1453206
Hom.:
30
Cov.:
44
AF XY:
0.00439
AC XY:
3170
AN XY:
722774
show subpopulations
Gnomad4 AFR exome
AF:
0.000947
Gnomad4 AMR exome
AF:
0.00129
Gnomad4 ASJ exome
AF:
0.000348
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000574
Gnomad4 NFE exome
AF:
0.00551
Gnomad4 OTH exome
AF:
0.00577
GnomAD4 genome
AF:
0.00249
AC:
378
AN:
151946
Hom.:
4
Cov.:
32
AF XY:
0.00203
AC XY:
151
AN XY:
74250
show subpopulations
Gnomad4 AFR
AF:
0.00128
Gnomad4 AMR
AF:
0.00111
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00446
Gnomad4 OTH
AF:
0.00189
Alfa
AF:
0.00409
Hom.:
2
Bravo
AF:
0.00275
EpiCase
AF:
0.00327
EpiControl
AF:
0.00445

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

BRD2-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesMar 05, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
0.21
DANN
Benign
0.66
BranchPoint Hunter
1.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000017
dbscSNV1_RF
Benign
0.010
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.

Other links and lift over

dbSNP: rs147965395; hg19: chr6-32944023; COSMIC: COSV105314239; COSMIC: COSV105314239; API