rs756414393

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_032119.4(ADGRV1):c.3974C>T(p.Thr1325Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00007 in 1,613,794 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. T1325T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000070 ( 0 hom. )

Consequence

ADGRV1
NM_032119.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 7.51

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 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.855

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ADGRV1	NM_032119.4 link	c.3974C>T	p.Thr1325Met	missense_variant	Exon 20 of 90	ENST00000405460.9	NP_115495.3	Q8WXG9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ADGRV1	ENST00000405460.9 link	c.3974C>T	p.Thr1325Met	missense_variant	Exon 20 of 90	1	NM_032119.4	ENSP00000384582.2	Q8WXG9-1
ADGRV1	ENST00000640403.1 link	c.1265C>T	p.Thr422Met	missense_variant	Exon 10 of 29	5		ENSP00000492531.1	A0A1W2PRC7
ADGRV1	ENST00000504142.2 link	n.2740C>T		non_coding_transcript_exon_variant	Exon 14 of 14	5
ADGRV1	ENST00000639676.1 link	n.1572C>T		non_coding_transcript_exon_variant	Exon 8 of 11	5

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000442

AC:

AN:

248924

Hom.:

AF XY:

0.0000296

AC XY:

AN XY:

135030

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000581

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000557

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000464

Gnomad NFE exome

AF:

0.0000532

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000705

AC:

103

AN:

1461618

Hom.:

Cov.:

AF XY:

0.0000646

AC XY:

AN XY:

727082

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000448

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.000131

Gnomad4 NFE exome

AF:

0.0000782

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74330

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000144

Hom.:

Bravo

AF:

0.0000642

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000579

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:6Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Jul 01, 2018

CeGaT Center for Human Genetics Tuebingen

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Aug 20, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 16, 2024

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Reported without a second variant in a patient with Usher syndrome in published literature (PMID: 25333064); Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 25333064, 31964843) -

Abnormal activity of mitochondrial respiratory chain

Pathogenic:1

Apr 12, 2021

Department of Otolaryngology – Head & Neck Surgery, Cochlear Implant Center

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PS1_Strong, PM2_Moderate, PP3_Supporting -

not specified

Uncertain:1

May 16, 2023

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: ADGRV1 c.3974C>T (p.Thr1325Met) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4.4e-05 in 248924 control chromosomes (gnomAD). This frequency is not significantly higher than estimated for a pathogenic variant in ADGRV1 causing Usher Syndrome (4.4e-05 vs 0.0054), allowing no conclusion about variant significance. c.3974C>T has been reported in the literature as a non-informative genotype (second allele/genotype not specified) in at-least one individual affected with features of Usher Syndrome (example, Krawitz_2014). To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 25333064). Five clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 and classified the variant as VUS (n=3) and likely pathogenic (n=1). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Usher syndrome type 2C

Uncertain:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

ADGRV1-related disorder

Uncertain:1

Jan 19, 2023

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The ADGRV1 c.3974C>T variant is predicted to result in the amino acid substitution p.Thr1325Met. This variant was reported in an individual with Usher syndrome (Krawitz et al 2014. PubMed ID: 25333064). This variant is reported in 0.0062% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/5-89949365-C-T). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

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

Uncertain:1

Oct 31, 2018

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Uncertain

0.083

BayesDel_noAF

Uncertain

0.060

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.56

D;D;.

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.94

.;D;D

M_CAP

Pathogenic

0.85

MetaRNN

Pathogenic

0.85

D;D;D

MetaSVM

Benign

-1.2

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-4.1

.;D;.

REVEL

Pathogenic

0.75

Sift

Pathogenic

0.0

.;D;.

Sift4G

Pathogenic

0.0

.;D;.

Polyphen

1.0

D;D;.

Vest4

0.97

MutPred

0.34

Loss of catalytic residue at T1325 (P = 0.0226);Loss of catalytic residue at T1325 (P = 0.0226);.;

MVP

0.73

MPC

0.30

ClinPred

0.90

GERP RS

5.4

Varity_R

0.65

gMVP

0.81

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

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