rs143632883

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_032119.4(ADGRV1):c.7468G>A(p.Ala2490Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000224 in 1,613,942 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A2490A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

ADGRV1
NM_032119.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:1

Conservation

PhyloP100: 3.25

Variant links:

Genes affected

ADGRV1 (HGNC:17416): (adhesion G protein-coupled receptor V1) This gene encodes a member of the G-protein coupled receptor superfamily. The encoded protein contains a 7-transmembrane receptor domain, binds calcium and is expressed in the central nervous system. Mutations in this gene are associated with Usher syndrome 2 and familial febrile seizures. Several alternatively spliced transcripts have been described. [provided by RefSeq, Jul 2008]

ADGRV1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADGRV1	NM_032119.4 linkuse as main transcript	c.7468G>A	p.Ala2490Thr	missense_variant	33/90	ENST00000405460.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADGRV1	ENST00000405460.9 linkuse as main transcript	c.7468G>A	p.Ala2490Thr	missense_variant	33/90	1	NM_032119.4	P1	Q8WXG9-1

Frequencies

GnomAD3 genomes

AF:

0.000263

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00439

Gnomad AMR

AF:

0.000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000309

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000261

AC:

AN:

248962

Hom.:

AF XY:

0.000318

AC XY:

AN XY:

135038

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.000348

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000399

Gnomad OTH exome

AF:

0.000497

GnomAD4 exome

AF:

0.000220

AC:

322

AN:

1461592

Hom.:

Cov.:

AF XY:

0.000238

AC XY:

173

AN XY:

727066

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000381

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000243

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000234

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.000263

AC:

AN:

152350

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74502

show subpopulations

Gnomad4 AFR

AF:

0.0000962

Gnomad4 AMR

AF:

0.000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000309

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000333

Hom.:

Bravo

AF:

0.000230

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000600

AC:

ExAC

AF:

0.000289

AC:

EpiCase

AF:

0.000600

EpiControl

AF:

0.000771

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Sep 25, 2019	The ADGRV1 c.7468G>A; p.Ala2490Thr variant (rs143632883), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 46373). This variant is found in the general population with an overall allele frequency of 0.02% (67/280370 alleles) in the Genome Aggregation Database. The alanine at codon 2490 is moderately conserved, and computational analyses (SIFT: tolerated, PolyPhen-2: damaging) predict conflicting effects of this variant on protein structure/function. However, due to limited information, the clinical significance of the p.Ala2490Thr variant is uncertain at this time. -
Likely benign, criteria provided, single submitter	clinical testing	Invitae	Jan 23, 2024	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Feb 26, 2015

Variant classified as Uncertain Significance - Favor Benign. The p.Ala2490Thr va riant in GPR98 has been previously reported in 1 individual with hearing loss; h owever a variant affecting the remaining copy of GPR98 was not identified in thi s individual (LMM unpublished data). In addition, this variant has been identifi ed in 30/66628 (0.05%) European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs143632883). The alanine (Ala) res idue at position 2490 is not well conserved in some mammals and most evolutionar y distant species, raising the possibility that a change at this position may be tolerated. Additional computational prediction tools do not provide strong supp ort for or against an impact to the protein. In summary, while the clinical sign ificance of the p.Ala2490Thr variant is uncertain, the conservation data and its frequency in the general population suggest that it is more likely to be benign . -

Febrile seizures, familial, 4

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Jan 30, 2020

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 19, 2022

The c.7468G>A (p.A2490T) alteration is located in exon 33 (coding exon 33) of the ADGRV1 gene. This alteration results from a G to A substitution at nucleotide position 7468, causing the alanine (A) at amino acid position 2490 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Usher syndrome type 2C

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Febrile seizures, familial, 4;C2931213:Usher syndrome type 2C

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Apr 11, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.086

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.42

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.13

T;T;.

Eigen

Uncertain

0.28

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Uncertain

0.88

M_CAP

Benign

0.066

MetaRNN

Benign

0.022

T;T;T

MetaSVM

Benign

-1.1

MutationTaster

Benign

0.89

PrimateAI

Benign

0.33

Polyphen

0.91

P;P;.

Vest4

0.29

MVP

0.62

MPC

0.13

ClinPred

0.11

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.069

gMVP

0.56

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.38

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.38

Position offset: -4

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