chr6-156778869-G-GGCGGAGGAGGAGGAGGCA

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP3BP6BS2_Supporting

The NM_001374828.1(ARID1B):c.1206_1223dupCAGCGGAGGAGGAGGAGG(p.Gly408_Gly409insSerGlyGlyGlyGlyGly) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000194 in 1,392,650 control chromosomes in the GnomAD database, with no homozygous occurrence. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000054 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

ARID1B
NM_001374828.1 disruptive_inframe_insertion

Scores

Not classified

Clinical Significance

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

Conservation

PhyloP100: 1.36

Publications

0 publications found

Variant links:

Genes affected

ARID1B (HGNC:18040): (AT-rich interaction domain 1B) This locus encodes an AT-rich DNA interacting domain-containing protein. The encoded protein is a component of the SWI/SNF chromatin remodeling complex and may play a role in cell-cycle activation. The protein encoded by this locus is similar to AT-rich interactive domain-containing protein 1A. These two proteins function as alternative, mutually exclusive ARID-subunits of the SWI/SNF complex. The associated complexes play opposing roles. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2016]

ARID1B Gene-Disease associations (from GenCC):

Coffin-Siris syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Illumina, ClinGen
Coffin-Siris syndrome 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics

ARID1B links:

ENSG00000296922 (HGNC:):

ENSG00000296922 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP3

Nonframeshift variant in repetitive region in NM_001374828.1

BP6

Variant 6-156778869-G-GGCGGAGGAGGAGGAGGCA is Benign according to our data. Variant chr6-156778869-G-GGCGGAGGAGGAGGAGGCA is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 591704.

BS2

High AC in GnomAd4 at 8 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001374828.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ARID1B	NM_001374828.1	MANE Select	c.1206_1223dupCAGCGGAGGAGGAGGAGG	p.Gly408_Gly409insSerGlyGlyGlyGlyGly	disruptive_inframe_insertion	Exon 1 of 20	NP_001361757.1
ARID1B	NM_001438482.1		c.1206_1223dupCAGCGGAGGAGGAGGAGG	p.Gly408_Gly409insSerGlyGlyGlyGlyGly	disruptive_inframe_insertion	Exon 1 of 21	NP_001425411.1
ARID1B	NM_001438483.1		c.1206_1223dupCAGCGGAGGAGGAGGAGG	p.Gly408_Gly409insSerGlyGlyGlyGlyGly	disruptive_inframe_insertion	Exon 1 of 21	NP_001425412.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ARID1B	ENST00000636930.2	TSL:2 MANE Select	c.1206_1223dupCAGCGGAGGAGGAGGAGG	p.Gly408_Gly409insSerGlyGlyGlyGlyGly	disruptive_inframe_insertion	Exon 1 of 20	ENSP00000490491.2
ARID1B	ENST00000346085.10	TSL:1	c.1206_1223dupCAGCGGAGGAGGAGGAGG	p.Gly408_Gly409insSerGlyGlyGlyGlyGly	disruptive_inframe_insertion	Exon 2 of 21	ENSP00000344546.5
ARID1B	ENST00000350026.11	TSL:1	c.1206_1223dupCAGCGGAGGAGGAGGAGG	p.Gly408_Gly409insSerGlyGlyGlyGlyGly	disruptive_inframe_insertion	Exon 1 of 19	ENSP00000055163.8

Frequencies

GnomAD3 genomes

AF:

0.0000537

AC:

AN:

149078

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000985

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000202

Gnomad SAS

AF:

0.000209

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000299

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

57316

AF XY:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000153

AC:

AN:

1243474

Hom.:

Cov.:

AF XY:

0.0000196

AC XY:

AN XY:

611178

show subpopulations

African (AFR)

AF:

0.0000405

AC:

AN:

24700

American (AMR)

AF:

0.00

AC:

AN:

17418

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19598

East Asian (EAS)

AF:

0.00

AC:

AN:

27592

South Asian (SAS)

AF:

0.000154

AC:

AN:

58326

European-Finnish (FIN)

AF:

0.00

AC:

AN:

42292

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4826

European-Non Finnish (NFE)

AF:

0.00000300

AC:

AN:

998482

Other (OTH)

AF:

0.000119

AC:

AN:

50240

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.422

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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:

0.0000536

AC:

AN:

149176

Hom.:

Cov.:

AF XY:

0.0000686

AC XY:

AN XY:

72876

show subpopulations

African (AFR)

AF:

0.0000982

AC:

AN:

40732

American (AMR)

AF:

0.00

AC:

AN:

15080

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3436

East Asian (EAS)

AF:

0.000202

AC:

AN:

4940

South Asian (SAS)

AF:

0.000210

AC:

AN:

4766

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10016

Middle Eastern (MID)

AF:

0.00

AC:

AN:

272

European-Non Finnish (NFE)

AF:

0.0000299

AC:

AN:

66976

Other (OTH)

AF:

0.00

AC:

AN:

2078

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.00000378

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

1.4

Mutation Taster

=80/20

polymorphism

(source)

Splicing

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over