rs886041878

Variant names:

• chr6-157206843-G-GT
• rs886041878
• NM_001374828.1:c.6072dupT

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_001374828.1(ARID1B):​c.6072dupT​(p.Lys2025fs) variant causes a frameshift, stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ARID1B NM_001374828.1 frameshift, stop_gained
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4
• Conservation: PhyloP100: -0.0200
• Publications: 4 publications found

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: Illumina, ClinGen, Orphanet
• Coffin-Siris syndrome 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Pathogenic. The variant received 18 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 92 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 6-157206843-G-GT is Pathogenic according to our data. Variant chr6-157206843-G-GT is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 280727.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARID1B	NM_001374828.1	MANE Select	c.6072dupT	p.Lys2025fs	frameshift stop_gained	Exon 20 of 20	NP_001361757.1	A0A6Q8NVI4
	ARID1B	NM_001438482.1		c.6201dupT	p.Lys2068fs	frameshift stop_gained	Exon 21 of 21	NP_001425411.1
	ARID1B	NM_001438483.1		c.6114dupT	p.Lys2039fs	frameshift stop_gained	Exon 21 of 21	NP_001425412.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARID1B	ENST00000636930.2	TSL:2 MANE Select	c.6072dupT	p.Lys2025fs	frameshift stop_gained	Exon 20 of 20	ENSP00000490491.2	A0A6Q8NVI4
	ARID1B	ENST00000346085.10	TSL:1	c.5952dupT	p.Lys1985fs	frameshift stop_gained	Exon 21 of 21	ENSP00000344546.5	A0A3F2YNW7
	ARID1B	ENST00000350026.11	TSL:1	c.5913dupT	p.Lys1972fs	frameshift stop_gained	Exon 19 of 19	ENSP00000055163.8	Q8NFD5-5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic/Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	Coffin-Siris syndrome 1 (2)
2	-	-	not provided (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-0.020
Mutation Taster		=0/200	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs886041878; hg19: chr6-157527977;