Genetic Variant ARID3A:p.Met123Val (chr19-929895-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_005224.3(ARID3A):c.367A>G(p.Met123Val) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000024 in 1,540,390 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/25 in silico tools predict a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

ARID3A
NM_005224.3 missense, splice_region

Scores

Splicing: ADA: 0.7575

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.264

Variant links:

Genes affected

ARID3A (HGNC:3031): (AT-rich interaction domain 3A) This gene encodes a member of the ARID (AT-rich interaction domain) family of DNA binding proteins. It was found by homology to the Drosophila dead ringer gene, which is important for normal embryogenesis. Other ARID family members have roles in embryonic patterning, cell lineage gene regulation, cell cycle control, transcriptional regulation, and possibly in chromatin structure modification. [provided by RefSeq, Jul 2008]

ARID3A links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.009326786).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ARID3A	NM_005224.3 link	c.367A>G	p.Met123Val	missense_variant, splice_region_variant	Exon 2 of 9	ENST00000263620.8	NP_005215.1	Q99856

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ARID3A	ENST00000263620.8 link	c.367A>G	p.Met123Val	missense_variant, splice_region_variant	Exon 2 of 9	1	NM_005224.3	ENSP00000263620.2		Q99856

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000139

AC:

AN:

144292

Hom.:

AF XY:

0.0000130

AC XY:

AN XY:

77158

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000187

Gnomad SAS 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:

0.0000231

AC:

AN:

1388262

Hom.:

Cov.:

AF XY:

0.0000219

AC XY:

AN XY:

684992

show subpopulations

Gnomad4 AFR exome

AF:

0.0000317

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000840

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.27e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152128

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74330

show subpopulations

Gnomad4 AFR

AF:

0.0000724

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000498

Hom.:

Bravo

AF:

0.0000416

ESP6500AA

AF:

0.000269

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000535

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 20, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.367A>G (p.M123V) alteration is located in exon 2 (coding exon 1) of the ARID3A gene. This alteration results from a A to G substitution at nucleotide position 367, causing the methionine (M) at amino acid position 123 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.061

BayesDel_addAF

Benign

-0.57

BayesDel_noAF

Benign

-0.78

CADD

Benign

8.1

DANN

Benign

0.89

DEOGEN2

Benign

0.077

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.17

LIST_S2

Benign

0.45

M_CAP

Benign

0.013

MetaRNN

Benign

0.0093

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.0

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-0.61

REVEL

Benign

0.064

Sift

Benign

0.33

Sift4G

Benign

0.39

Polyphen

0.0

Vest4

0.068

MVP

0.24

MPC

0.16

ClinPred

0.047

GERP RS

-0.90

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.6

Varity_R

0.14

gMVP

0.034

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.76

dbscSNV1_RF

Benign

0.59

SpliceAI score (max)

0.29

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.29

Position offset: -1

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over