chr6-32975374-T-A

Variant names:

• chr6-32975374-T-A
• rs635688
• NM_005104.4:c.334-10T>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_005104.4(BRD2):​c.334-10T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000692 in 1,446,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 29)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: BRD2 NM_005104.4 intron
• Scores: Splicing: ADA: 0.001171
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -5.63
• Publications: 16 publications found

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]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRD2	NM_005104.4	c.334-10T>A		intron_variant	Intron 3 of 12	ENST00000374825.9	NP_005095.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BRD2	ENST00000374825.9	c.334-10T>A		intron_variant	Intron 3 of 12	1	NM_005104.4	ENSP00000363958.4

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome AF: 6.92e-7 AC: 1 AN: 1446068 Hom.: 0 Cov.: 33 AF XY: 0.00000139 AC XY: 1 AN XY: 719812

African (AFR) AF: 0.00 AC: 0 AN: 32916

American (AMR) AF: 0.00 AC: 0 AN: 43730

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25962

East Asian (EAS) AF: 0.00 AC: 0 AN: 39612

South Asian (SAS) AF: 0.00 AC: 0 AN: 84796

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52040

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5486

European-Non Finnish (NFE) AF: 9.08e-7 AC: 1 AN: 1101706

Other (OTH) AF: 0.00 AC: 0 AN: 59820

GnomAD4 genome Cov.: 29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	0.0050
DANN	Benign	0.64
PhyloP100		-5.6
RBP_binding_hub_radar		0.67
RBP_regulation_power_radar		1.8

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0012
dbscSNV1_RF	Benign	0.21
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs635688; hg19: chr6-32943151;