5-90690046-G-C

Variant names:

• chr5-90690046-G-C
• rs397517433
• NM_032119.4:c.6676G>C
• ADGRV1 p.Glu2226Gln

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_032119.4(ADGRV1):​c.6676G>C​(p.Glu2226Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000007 in 1,429,528 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. E2226K) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: ADGRV1 NM_032119.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.99
• Publications: 3 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: Labcorp Genetics (formerly Invitae), G2P
• 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 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3390926).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032119.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADGRV1	NM_032119.4	MANE Select	c.6676G>C	p.Glu2226Gln	missense	Exon 30 of 90	NP_115495.3	Q8WXG9-1
	ADGRV1	NR_003149.2		n.6775G>C		non_coding_transcript_exon	Exon 30 of 90

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADGRV1	ENST00000405460.9	TSL:1 MANE Select	c.6676G>C	p.Glu2226Gln	missense	Exon 30 of 90	ENSP00000384582.2	Q8WXG9-1
	ADGRV1	ENST00000640403.1	TSL:5	c.3967G>C	p.Glu1323Gln	missense	Exon 20 of 29	ENSP00000492531.1	A0A1W2PRC7
	ADGRV1	ENST00000639473.1	TSL:5	n.2135G>C		non_coding_transcript_exon	Exon 10 of 23

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000501 AC: 1 AN: 199796 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000193

GnomAD4 exome AF: 7.00e-7 AC: 1 AN: 1429528 Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0 AN XY: 708444

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

African (AFR) AF: 0.00 AC: 0 AN: 32980

American (AMR) AF: 0.0000252 AC: 1 AN: 39646

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25538

East Asian (EAS) AF: 0.00 AC: 0 AN: 38808

South Asian (SAS) AF: 0.00 AC: 0 AN: 82354

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51770

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5726

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1093426

Other (OTH) AF: 0.00 AC: 0 AN: 59280

⚠️ 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.

GnomAD4 genome Cov.: 31

Alfa AF: 0.0000434 Hom.: 0

Bravo AF: 0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.52
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.12	T
Eigen	Uncertain	0.63
Eigen_PC	Uncertain	0.64
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.91	D
M_CAP	Uncertain	0.15	D
MetaRNN	Benign	0.34	T
MetaSVM	Benign	-1.0	T
PhyloP100		5.0
PrimateAI	Uncertain	0.53	T
PROVEAN	Benign	-0.95	N
REVEL	Benign	0.15
Sift	Benign	0.24	T
Sift4G	Benign	0.19	T
Varity_R		0.36
gMVP		0.65
Mutation Taster		=93/7	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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs397517433;

hg19: chr5-89985863;

COSMIC: COSV67980175;

COSMIC: COSV67980175;