12-45729858-G-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2 PP2 BP4_Strong

The NM_152641.4(ARID2):c.22G>T(p.Ala8Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,459,106 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ARID2 NM_152641.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.97

Genes affected

ARID2 (HGNC:18037): (AT-rich interaction domain 2) This gene encodes a member of the AT-rich interactive domain (ARID)-containing family of DNA-binding proteins. Members of the ARID family have roles in embryonic patterning, cell lineage gene regulation, cell cycle control, transcriptional regulation and chromatin structure modification. This protein functions as a subunit of the polybromo- and BRG1-associated factor or PBAF (SWI/SNF-B) chromatin remodeling complex which facilitates ligand-dependent transcriptional activation by nuclear receptors. Mutations in this gene are associated with hepatocellular carcinomas. A pseudogene of this gene is found on chromosome1. [provided by RefSeq, Dec 2016]

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, ARID2
• BP4: Computational evidence support a benign effect (MetaRNN=0.06364554).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARID2	NM_152641.4	c.22G>T	p.Ala8Ser	missense_variant	1/21	ENST00000334344.11
ARID2	NM_001347839.2	c.22G>T	p.Ala8Ser	missense_variant	1/20
ARID2	XM_047428489.1	c.22G>T	p.Ala8Ser	missense_variant	1/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARID2	ENST00000334344.11	c.22G>T	p.Ala8Ser	missense_variant	1/21	1	NM_152641.4	P1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1459106 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 725742

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 30

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

ARID2-related disorder Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jul 13, 2023

The ARID2 c.22G>T variant is predicted to result in the amino acid substitution p.Ala8Ser. To our knowledge, this variant has not been reported in the literature or in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.075
BayesDel_addAF	Benign	-0.26	T
BayesDel_noAF	Benign	-0.61
Cadd	Benign	21
Dann	Benign	0.95
DEOGEN2	Benign	0.012	T
Eigen	Benign	-0.70
Eigen_PC	Benign	-0.54
FATHMM_MKL	Benign	0.24	N
LIST_S2	Benign	0.80	T
M_CAP	Uncertain	0.13	D
MetaRNN	Benign	0.064	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
MutationTaster	Benign	1.0	D;N
PrimateAI	Pathogenic	0.86	D
PROVEAN	Benign	0.80	N
REVEL	Benign	0.049
Sift	Benign	0.28	T
Sift4G	Benign	0.49	T
Polyphen		0.0090	B
Vest4		0.082
MutPred		0.26		Gain of catalytic residue at K7 (P = 0);
MVP		0.10
MPC		0.99
ClinPred		0.27	T
GERP RS		2.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.13
gMVP		0.17

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

LitVar

Other links and lift over

dbSNP: rs1374980785; hg19: chr12-46123641;