5-90558852-C-T

Position:

• chr5-90558852-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP6

The NM_032119.4(ADGRV1):​c.-44C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000227 in 1,556,276 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.00031 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00022 (1 hom.)
• Consequence: ADGRV1 NM_032119.4 5_prime_UTR
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 0.0640

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]

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.56).
• BP6: Variant 5-90558852-C-T is Benign according to our data. Variant chr5-90558852-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 137498.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADGRV1	NM_032119.4	c.-44C>T		5_prime_UTR_variant	1/90	ENST00000405460.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADGRV1	ENST00000405460.9	c.-44C>T		5_prime_UTR_variant	1/90	1	NM_032119.4	P1

Frequencies

GnomAD3 genomes AF: 0.000309 AC: 47 AN: 152024 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000483

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

Gnomad ASJ AF: 0.00403

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000338

Gnomad OTH AF: 0.00239

GnomAD3 exomes AF: 0.000292 AC: 48 AN: 164180 Hom.: 0 AF XY: 0.000275 AC XY: 24 AN XY: 87384

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000237

Gnomad ASJ exome AF: 0.00278

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000244

Gnomad OTH exome AF: 0.000442

GnomAD4 exome AF: 0.000218 AC: 306 AN: 1404136 Hom.: 1 Cov.: 30 AF XY: 0.000234 AC XY: 162 AN XY: 693370

Gnomad4 AFR exome AF: 0.0000619

Gnomad4 AMR exome AF: 0.000331

Gnomad4 ASJ exome AF: 0.00329

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000375

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000155

Gnomad4 OTH exome AF: 0.000464

GnomAD4 genome AF: 0.000309 AC: 47 AN: 152140 Hom.: 0 Cov.: 32 AF XY: 0.000323 AC XY: 24 AN XY: 74376

Gnomad4 AFR AF: 0.0000482

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00403

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000338

Gnomad4 OTH AF: 0.00236

Alfa AF: 0.000513 Hom.: 0

Bravo AF: 0.000242

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Usher syndrome type 2C Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Dec 26, 2013

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.56
CADD	Benign	15
DANN	Benign	0.92

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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

Other links and lift over

dbSNP: rs192362302; hg19: chr5-89854669;