rs755976776

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP3BP6_Moderate

The NM_001374828.1(ARID1B):​c.1206_1223delCAGCGGAGGAGGAGGAGG​(p.Ser403_Gly408del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000646 in 1,392,532 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 DEL_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. There is a variant allele frequency bias in the population database for this variant (GnomAd4), which may indicate mosaicism or somatic mutations in the reference population data. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. G402G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000034 ( 0 hom., cov: 29)
Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

ARID1B
NM_001374828.1 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.23

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

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-GGCGGAGGAGGAGGAGGCA-G is Benign according to our data. Variant chr6-156778869-GGCGGAGGAGGAGGAGGCA-G is described in ClinVar as Likely_benign. ClinVar VariationId is 434372.Status of the report is criteria_provided_single_submitter, 1 stars.

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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ARID1B
NM_001374828.1
MANE Select
c.1206_1223delCAGCGGAGGAGGAGGAGGp.Ser403_Gly408del
disruptive_inframe_deletion
Exon 1 of 20NP_001361757.1
ARID1B
NM_001438482.1
c.1206_1223delCAGCGGAGGAGGAGGAGGp.Ser403_Gly408del
disruptive_inframe_deletion
Exon 1 of 21NP_001425411.1
ARID1B
NM_001438483.1
c.1206_1223delCAGCGGAGGAGGAGGAGGp.Ser403_Gly408del
disruptive_inframe_deletion
Exon 1 of 21NP_001425412.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ARID1B
ENST00000636930.2
TSL:2 MANE Select
c.1206_1223delCAGCGGAGGAGGAGGAGGp.Ser403_Gly408del
disruptive_inframe_deletion
Exon 1 of 20ENSP00000490491.2
ARID1B
ENST00000346085.10
TSL:1
c.1206_1223delCAGCGGAGGAGGAGGAGGp.Ser403_Gly408del
disruptive_inframe_deletion
Exon 2 of 21ENSP00000344546.5
ARID1B
ENST00000350026.11
TSL:1
c.1206_1223delCAGCGGAGGAGGAGGAGGp.Ser403_Gly408del
disruptive_inframe_deletion
Exon 1 of 19ENSP00000055163.8

Frequencies

GnomAD3 genomes
AF:
0.0000335
AC:
5
AN:
149076
Hom.:
0
Cov.:
29
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:
0.0000746
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
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:
0.0000684
AC:
85
AN:
1243456
Hom.:
0
AF XY:
0.0000736
AC XY:
45
AN XY:
611164
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000405
AC:
1
AN:
24704
American (AMR)
AF:
0.00
AC:
0
AN:
17420
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19598
East Asian (EAS)
AF:
0.00
AC:
0
AN:
27592
South Asian (SAS)
AF:
0.0000171
AC:
1
AN:
58324
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
42288
Middle Eastern (MID)
AF:
0.000207
AC:
1
AN:
4826
European-Non Finnish (NFE)
AF:
0.0000801
AC:
80
AN:
998466
Other (OTH)
AF:
0.0000398
AC:
2
AN:
50238
⚠️ 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: 0.393
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000335
AC:
5
AN:
149076
Hom.:
0
Cov.:
29
AF XY:
0.0000412
AC XY:
3
AN XY:
72766
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:
0
AN:
40620
American (AMR)
AF:
0.00
AC:
0
AN:
15060
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3436
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4956
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4774
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10016
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000746
AC:
5
AN:
66986
Other (OTH)
AF:
0.00
AC:
0
AN:
2054
⚠️ 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: 0.375
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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.:
0

ClinVar

ClinVar submissions as Germline

Significance:Likely benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
PhyloP100
3.2
Mutation Taster
=164/36
polymorphism

Splicing

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

Publications

Other links and lift over

dbSNP: rs755976776; hg19: chr6-157100003; API