Genetic Variant ADGRV1:p.Ile675Phe (chr5-90637731-A-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_032119.4(ADGRV1):c.2023A>T(p.Ile675Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,452,988 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. 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. I675L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ADGRV1
NM_032119.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.40

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

Usher syndrome type 2
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
Usher syndrome type 2C
Inheritance: AR Classification: STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
febrile seizures, familial, 4
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
nonsyndromic genetic hearing loss
Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

ADGRV1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.34076038).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ADGRV1	NM_032119.4 link	c.2023A>T	p.Ile675Phe	missense_variant	Exon 11 of 90	ENST00000405460.9	NP_115495.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ADGRV1	ENST00000405460.9 link	c.2023A>T	p.Ile675Phe	missense_variant	Exon 11 of 90	1	NM_032119.4	ENSP00000384582.2
ADGRV1	ENST00000504142.2 link	n.789A>T		non_coding_transcript_exon_variant	Exon 5 of 14	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.88e-7

AC:

AN:

1452988

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

722856

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33070

American (AMR)

AF:

0.00

AC:

AN:

43680

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25882

East Asian (EAS)

AF:

0.00

AC:

AN:

39608

South Asian (SAS)

AF:

0.00

AC:

AN:

84894

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53010

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5722

European-Non Finnish (NFE)

AF:

9.03e-7

AC:

AN:

1107102

Other (OTH)

AF:

0.00

AC:

AN:

60020

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

EpiCase

AF:

0.0000553

EpiControl

AF:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Benign

-0.025

BayesDel_noAF

Benign

-0.27

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.16

T;T

Eigen

Uncertain

0.38

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.0

.;T

M_CAP

Benign

0.044

MetaRNN

Benign

0.34

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

.;.

PhyloP100

2.4

PrimateAI

Uncertain

0.50

PROVEAN

Benign

0.0

.;N

REVEL

Benign

0.0

Sift

Pathogenic

0.0

.;D

Sift4G

Pathogenic

0.0

.;D

Vest4

0.0

ClinPred

0.93

GERP RS

4.7

Varity_R

0.16

gMVP

0.74

Mutation Taster

=64/36

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over