1-26696516-AGGCGGCGGCGGC-AGGCGGCGGC

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PM4_Supporting

The NM_006015.6(ARID1A):c.126_128delGGC(p.Ala43del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000555 in 1,224,168 control chromosomes in the GnomAD database, with no homozygous occurrence. There is a variant allele frequency bias in the population database for this variant (GnomAdExome4), which may indicate mosaicism or somatic mutations in the reference population data. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. A42A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

ARID1A
NM_006015.6 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 0.712

Publications

5 publications found

Variant links:

Genes affected

ARID1A (HGNC:11110): (AT-rich interaction domain 1A) This gene encodes a member of the SWI/SNF family, whose members have helicase and ATPase activities and are thought to regulate transcription of certain genes by altering the chromatin structure around those genes. The encoded protein is part of the large ATP-dependent chromatin remodeling complex SNF/SWI, which is required for transcriptional activation of genes normally repressed by chromatin. It possesses at least two conserved domains that could be important for its function. First, it has a DNA-binding domain that can specifically bind an AT-rich DNA sequence known to be recognized by a SNF/SWI complex at the beta-globin locus. Second, the C-terminus of the protein can stimulate glucocorticoid receptor-dependent transcriptional activation. It is thought that the protein encoded by this gene confers specificity to the SNF/SWI complex and may recruit the complex to its targets through either protein-DNA or protein-protein interactions. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ARID1A Gene-Disease associations (from GenCC):

Coffin-Siris syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
intellectual disability, autosomal dominant 14
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Illumina, G2P, Labcorp Genetics (formerly Invitae)

ARID1A links:

LOC124900417 (HGNC:):

LOC124900417 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM4

Nonframeshift variant in NON repetitive region in NM_006015.6. Strenght limited to Supporting due to length of the change: 1aa.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006015.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARID1A	NM_006015.6	MANE Select	c.126_128delGGC	p.Ala43del	disruptive_inframe_deletion	Exon 1 of 20	NP_006006.3
	ARID1A	NM_139135.4		c.126_128delGGC	p.Ala43del	disruptive_inframe_deletion	Exon 1 of 20	NP_624361.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ARID1A	ENST00000324856.13	TSL:1 MANE Select	c.126_128delGGC	p.Ala43del	disruptive_inframe_deletion	Exon 1 of 20	ENSP00000320485.7
ARID1A	ENST00000850904.1		c.126_128delGGC	p.Ala43del	disruptive_inframe_deletion	Exon 1 of 20	ENSP00000520984.1
ARID1A	ENST00000457599.7	TSL:5	c.126_128delGGC	p.Ala43del	disruptive_inframe_deletion	Exon 1 of 20	ENSP00000387636.2

Frequencies

GnomAD3 genomes

AF:

0.00000671

AC:

AN:

149102

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:

0.0000149

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

330

AF XY:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000623

AC:

AN:

1075066

Hom.:

AF XY:

0.0000902

AC XY:

AN XY:

510194

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

22232

American (AMR)

AF:

0.000127

AC:

AN:

7876

Ashkenazi Jewish (ASJ)

AF:

0.0000737

AC:

AN:

13574

East Asian (EAS)

AF:

0.000119

AC:

AN:

25284

South Asian (SAS)

AF:

0.000473

AC:

AN:

21144

European-Finnish (FIN)

AF:

0.000142

AC:

AN:

21164

Middle Eastern (MID)

AF:

0.00

AC:

AN:

2856

European-Non Finnish (NFE)

AF:

0.0000512

AC:

AN:

918206

Other (OTH)

AF:

0.0000468

AC:

AN:

42730

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.242

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:

0.00000671

AC:

AN:

149102

Hom.:

Cov.:

AF XY:

0.0000137

AC XY:

AN XY:

72784

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

40586

American (AMR)

AF:

0.00

AC:

AN:

15062

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3450

East Asian (EAS)

AF:

0.00

AC:

AN:

4918

South Asian (SAS)

AF:

0.00

AC:

AN:

4678

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10092

Middle Eastern (MID)

AF:

0.00

AC:

AN:

304

European-Non Finnish (NFE)

AF:

0.0000149

AC:

AN:

67066

Other (OTH)

AF:

0.00

AC:

AN:

2048

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

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.:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.71

Mutation Taster

=69/31

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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