6-156778982-AGGCGGCGGC-AGGCGGCGGCGGCGGC

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP3BP6BS2_Supporting

The NM_001374828.1(ARID1B):​c.1315_1320dupGGCGGC​(p.Gly439_Gly440dup) variant causes a conservative inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000214 in 1,262,840 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000051 ( 0 hom., cov: 29)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

ARID1B
NM_001374828.1 conservative_inframe_insertion

Scores

Not classified

Clinical Significance

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

Conservation

PhyloP100: 0.00
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP3
Nonframeshift variant in repetitive region in NM_001374828.1
BP6
Variant 6-156778982-A-AGGCGGC is Benign according to our data. Variant chr6-156778982-A-AGGCGGC is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1781697.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS2
High AC in GnomAd4 at 7 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ARID1BNM_001374828.1 linkc.1315_1320dupGGCGGC p.Gly439_Gly440dup conservative_inframe_insertion Exon 1 of 20 ENST00000636930.2 NP_001361757.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ARID1BENST00000636930.2 linkc.1315_1320dupGGCGGC p.Gly439_Gly440dup conservative_inframe_insertion Exon 1 of 20 2 NM_001374828.1 ENSP00000490491.2 Q8NFD5-3A0A6Q8NVI4

Frequencies

GnomAD3 genomes
AF:
0.0000510
AC:
7
AN:
137300
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.000164
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000702
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
GnomAD4 exome
AF:
0.0000178
AC:
20
AN:
1125434
Hom.:
0
Cov.:
35
AF XY:
0.0000221
AC XY:
12
AN XY:
541872
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000379
Gnomad4 SAS exome
AF:
0.0000375
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000157
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.0000509
AC:
7
AN:
137406
Hom.:
0
Cov.:
29
AF XY:
0.0000743
AC XY:
5
AN XY:
67290
show subpopulations
Gnomad4 AFR
AF:
0.000163
Gnomad4 AMR
AF:
0.0000702
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

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

ARID1B-related disorder Uncertain:1
May 01, 2023
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The ARID1B c.1066_1071dup6 variant is predicted to result in an in-frame duplication (p.Gly356_Gly357dup). To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.013% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/6-157100116-A-AGGCGGC). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Inborn genetic diseases Benign:1
May 15, 2018
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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.

Other links and lift over

dbSNP: rs797045268; hg19: chr6-157100116; API