rs772896545

Positions:

• chr5-90627376-A-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.838A>T​(p.Ile280Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,656 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ADGRV1 NM_032119.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: -0.823

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 (HGNC:):

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 (MetaRNN=0.020492643).
• BP6: Variant 5-90627376-A-T is Benign according to our data. Variant chr5-90627376-A-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 517489.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ADGRV1	NM_032119.4	c.838A>T	p.Ile280Leu	missense_variant	7/90	ENST00000405460.9	NP_115495.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ADGRV1	ENST00000405460.9	c.838A>T	p.Ile280Leu	missense_variant	7/90	1	NM_032119.4	ENSP00000384582.2
ADGRV1	ENST00000640281.1	n.897A>T		non_coding_transcript_exon_variant	7/7	1
ADGRV1	ENST00000640083.1	n.543A>T		non_coding_transcript_exon_variant	5/6	5
ADGRV1	ENST00000640109.1	n.934A>T		non_coding_transcript_exon_variant	7/9	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000803 AC: 2 AN: 249164 Hom.: 0 AF XY: 0.00000740 AC XY: 1 AN XY: 135160

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000579

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461656 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727108

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000447

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

ExAC AF: 0.00000828 AC: 1

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 10, 2021

The c.838A>T (p.I280L) alteration is located in exon 7 (coding exon 7) of the ADGRV1 gene. This alteration results from a A to T substitution at nucleotide position 838, causing the isoleucine (I) at amino acid position 280 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jul 20, 2017

p.Ile280Leu in exon 7 of GPR98: This variant is not expected to have clinical si gnificance because the isoleucine (Ile) at position 280 is not conserved through species, with >10 mammals having a leucine (Leu) at this position. This varian t has also been identified in 2/33580 Latino chromosomes by the Genome Aggregati on Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs772896545). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.063
BayesDel_addAF	Benign	-0.49	T
BayesDel_noAF	Benign	-0.77
CADD	Benign	0.012
DANN	Benign	0.58
DEOGEN2	Benign	0.052	T;T
Eigen	Benign	-2.5
Eigen_PC	Benign	-2.5
FATHMM_MKL	Benign	0.12	N
LIST_S2	Benign	0.13	.;T
M_CAP	Benign	0.0032	T
MetaRNN	Benign	0.020	T;T
MetaSVM	Benign	-1.0	T
PrimateAI	Benign	0.21	T
PROVEAN	Benign	-0.15	.;N
REVEL	Benign	0.021
Sift	Benign	0.69	.;T
Sift4G	Benign	0.53	.;T
Polyphen		0.0	B;B
Vest4		0.19
MutPred		0.42		Gain of sheet (P = 0.0477);Gain of sheet (P = 0.0477);
MVP		0.076
MPC		0.047
ClinPred		0.026	T
GERP RS		-12
Varity_R		0.045
gMVP		0.35

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

Other links and lift over

dbSNP: rs772896545; hg19: chr5-89923193;