Genetic Variant BRD3:p.Lys274Gln (chr9-134048349-T-G) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_007371.4(BRD3):c.820A>C(p.Lys274Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000169 in 1,599,194 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000090 ( 0 hom. )

Consequence

BRD3
NM_007371.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.79

Variant links:

Genes affected

BRD3 (HGNC:1104): (bromodomain containing 3) This gene was identified based on its homology to the gene encoding the RING3 protein, a serine/threonine kinase. The gene localizes to 9q34, a region which contains several major histocompatibility complex (MHC) genes. The function of the encoded protein is not known. [provided by RefSeq, Jul 2008]

BRD3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.17484647).

BS2

High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRD3	NM_007371.4 link	c.820A>C	p.Lys274Gln	missense_variant	Exon 6 of 12	ENST00000303407.12	NP_031397.1	Q15059-1A0A024R8H6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
BRD3	ENST00000303407.12 link	c.820A>C	p.Lys274Gln	missense_variant	Exon 6 of 12	1	NM_007371.4	ENSP00000305918.6	Q15059-1
BRD3	ENST00000371834.6 link	c.820A>C	p.Lys274Gln	missense_variant	Exon 6 of 10	1		ENSP00000360900.2	Q15059-2
BRD3	ENST00000494743.1 link	n.160A>C		non_coding_transcript_exon_variant	Exon 2 of 2	3

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000916

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000502

AC:

AN:

239072

Hom.:

AF XY:

0.0000383

AC XY:

AN XY:

130408

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000348

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.00000898

AC:

AN:

1446976

Hom.:

Cov.:

AF XY:

0.00000972

AC XY:

AN XY:

720196

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000268

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000916

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.820A>C (p.K274Q) alteration is located in exon 6 (coding exon 5) of the BRD3 gene. This alteration results from a A to C substitution at nucleotide position 820, causing the lysine (K) at amino acid position 274 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.32

T;.

Eigen

Uncertain

0.21

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.060

MetaRNN

Benign

0.17

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Pathogenic

3.3

M;M

PrimateAI

Uncertain

0.77

PROVEAN

Uncertain

-2.7

D;D

REVEL

Benign

0.12

Sift

Benign

0.032

D;D

Sift4G

Benign

0.077

T;T

Polyphen

0.79

P;B

Vest4

0.32

MutPred

0.24

Loss of methylation at K274 (P = 0.0126);Loss of methylation at K274 (P = 0.0126);

MVP

0.59

MPC

1.8

ClinPred

0.47

GERP RS

5.0

Varity_R

0.55

gMVP

0.46

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over