chr5-90756618-T-A

Variant names:

• chr5-90756618-T-A
• rs201453118
• NM_032119.4:c.11745T>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_032119.4(ADGRV1):​c.11745T>A​(p.Phe3915Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. F3915F) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ADGRV1 NM_032119.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.956
• Publications: 0 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ADGRV1	NM_032119.4	c.11745T>A	p.Phe3915Leu	missense_variant	Exon 56 of 90	ENST00000405460.9	NP_115495.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ADGRV1	ENST00000405460.9	c.11745T>A	p.Phe3915Leu	missense_variant	Exon 56 of 90	1	NM_032119.4	ENSP00000384582.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Apr 04, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant has not been reported in the literature in individuals affected with ADGRV1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces phenylalanine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 3915 of the ADGRV1 protein (p.Phe3915Leu). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.80
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	21
DANN	Uncertain	0.98
DEOGEN2	Benign	0.29	T;T
Eigen	Benign	-0.13
Eigen_PC	Benign	-0.21
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.59	.;T
M_CAP	Uncertain	0.26	D
MetaRNN	Uncertain	0.64	D;D
MetaSVM	Benign	-0.85	T
PhyloP100		0.96
PrimateAI	Uncertain	0.64	T
PROVEAN	Uncertain	-3.4	.;D
REVEL	Benign	0.18
Sift	Benign	0.21	.;T
Sift4G	Pathogenic	0.0	.;D
Polyphen		0.99	D;D
Vest4		0.66
MutPred		0.59		Gain of relative solvent accessibility (P = 0.1571);Gain of relative solvent accessibility (P = 0.1571);
MVP		0.48
MPC		0.28
ClinPred		0.96	D
GERP RS		2.2
Varity_R		0.31
gMVP		0.84
Mutation Taster		=66/34	polymorphism

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

Other links and lift over

dbSNP: rs201453118; hg19: chr5-90052435;