6-157167048-G-T

Variant names:

• chr6-157167048-G-T
• rs1554228777
• NM_001374828.1:c.3098G>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001374828.1(ARID1B):​c.3098G>T​(p.Ser1033Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S1033N) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: ARID1B NM_001374828.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.28
• Publications: 0 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: Orphanet, Illumina, ClinGen
• Coffin-Siris syndrome 1

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19759235).

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	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARID1B	NM_001374828.1	MANE Select	c.3098G>T	p.Ser1033Ile	missense	Exon 9 of 20	NP_001361757.1
	ARID1B	NM_001438482.1		c.3227G>T	p.Ser1076Ile	missense	Exon 10 of 21	NP_001425411.1
	ARID1B	NM_001438483.1		c.3140G>T	p.Ser1047Ile	missense	Exon 10 of 21	NP_001425412.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARID1B	ENST00000636930.2	TSL:2 MANE Select	c.3098G>T	p.Ser1033Ile	missense	Exon 9 of 20	ENSP00000490491.2
	ARID1B	ENST00000346085.10	TSL:1	c.3137G>T	p.Ser1046Ile	missense	Exon 11 of 21	ENSP00000344546.5
	ARID1B	ENST00000350026.11	TSL:1	c.3098G>T	p.Ser1033Ile	missense	Exon 9 of 19	ENSP00000055163.8

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459096 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 725964

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50744

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111952

Other (OTH) AF: 0.00 AC: 0 AN: 60366

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.43
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Benign	0.19	T
Eigen	Benign	0.15
Eigen_PC	Uncertain	0.27
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.0075	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.4	L
PhyloP100		1.3
PrimateAI	Benign	0.41	T
PROVEAN	Uncertain	-3.5	D
REVEL	Benign	0.061
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0080	D
Polyphen		0.84	P
Vest4		0.29
MutPred		0.30		Loss of phosphorylation at S950 (P = 0.0125)
MVP		0.23
MPC		0.91
ClinPred		0.96	D
GERP RS		4.8
Varity_R		0.48
gMVP		0.60
Mutation Taster		=88/12	polymorphism

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: rs1554228777; hg19: chr6-157488182;