NM_153252.5:c.3324A>G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PP3_ModerateBP6BS2

The NM_153252.5(BRWD3):c.3324A>G(p.Gly1108Gly) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000183 in 1,202,852 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 9 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 1 hem., cov: 22)

Exomes 𝑓: 0.000019 ( 0 hom. 8 hem. )

Consequence

BRWD3
NM_153252.5 splice_region, synonymous

Scores

Splicing: ADA: 0.9998

Clinical Significance

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

Conservation

PhyloP100: 2.45

Publications

0 publications found

Variant links:

Genes affected

BRWD3 (HGNC:17342): (bromodomain and WD repeat domain containing 3) The protein encoded by this gene contains a bromodomain and several WD repeats. It is thought to have a chromatin-modifying function, and may thus play a role in transcription. Mutations in this gene are associated with a spectrum of cognitive disabilities and X-linked macrocephaly. This gene is also associated with translocations in patients with B-cell chronic lymphocytic leukemia. [provided by RefSeq, Jul 2017]

BRWD3 Gene-Disease associations (from GenCC):

intellectual disability, X-linked 93
Inheritance: XL, AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
X-linked syndromic intellectual disability
Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
infantile spasms
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
self-limited epilepsy with centrotemporal spikes
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

BRWD3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3

Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

BP6

Variant X-80692090-T-C is Benign according to our data. Variant chrX-80692090-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 210539.

BS2

High AC in GnomAdExome4 at 21 XL,AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
BRWD3	NM_153252.5 link	c.3324A>G	p.Gly1108Gly	splice_region_variant, synonymous_variant	Exon 29 of 41	ENST00000373275.5	NP_694984.5
BRWD3	NM_001441339.1 link	c.3174A>G	p.Gly1058Gly	splice_region_variant, synonymous_variant	Exon 28 of 40		NP_001428268.1
BRWD3	XM_017029384.2 link	c.2112A>G	p.Gly704Gly	splice_region_variant, synonymous_variant	Exon 18 of 30		XP_016884873.1
BRWD3	XM_047441957.1 link	c.3324A>G	p.Gly1108Gly	splice_region_variant, synonymous_variant	Exon 29 of 38		XP_047297913.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BRWD3	ENST00000373275.5 link	c.3324A>G	p.Gly1108Gly	splice_region_variant, synonymous_variant	Exon 29 of 41	1	NM_153252.5	ENSP00000362372.4
BRWD3	ENST00000473691.1 link	n.1460A>G		splice_region_variant, non_coding_transcript_exon_variant	Exon 13 of 25	2

Frequencies

GnomAD3 genomes

AF:

0.00000893

AC:

AN:

111929

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000188

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000219

AC:

AN:

182392

AF XY:

0.0000297

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000492

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1090923

Hom.:

Cov.:

AF XY:

0.0000224

AC XY:

AN XY:

357543

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26245

American (AMR)

AF:

0.00

AC:

AN:

35179

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19328

East Asian (EAS)

AF:

0.00

AC:

AN:

30152

South Asian (SAS)

AF:

0.00

AC:

AN:

53664

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40484

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3583

European-Non Finnish (NFE)

AF:

0.0000251

AC:

AN:

836485

Other (OTH)

AF:

0.00

AC:

AN:

45803

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.00000893

AC:

AN:

111929

Hom.:

Cov.:

AF XY:

0.0000293

AC XY:

AN XY:

34083

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30848

American (AMR)

AF:

0.00

AC:

AN:

10491

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2652

East Asian (EAS)

AF:

0.00

AC:

AN:

3609

South Asian (SAS)

AF:

0.00

AC:

AN:

2683

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6054

Middle Eastern (MID)

AF:

0.00

AC:

AN:

238

European-Non Finnish (NFE)

AF:

0.0000188

AC:

AN:

53166

Other (OTH)

AF:

0.00

AC:

AN:

1502

Age Distribution

Genome Hom

Variant carriers

<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:

0.00

Hom.:

Bravo

AF:

0.0000227

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 29, 2015

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Oct 16, 2024

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

BayesDel_noAF

Benign

-0.47

CADD

Benign

(source)

DANN

Benign

0.84

PhyloP100

2.4

Mutation Taster

=16/84

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.97

SpliceAI score (max)

0.18

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over