rs770149544

Positions:

chr12-109814613-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2

The NM_021625.5(TRPV4):c.184G>A(p.Asp62Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000105 in 1,613,872 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

TRPV4
NM_021625.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:5

Conservation

PhyloP100: 7.06

Variant links:

Genes affected

TRPV4 (HGNC:18083): (transient receptor potential cation channel subfamily V member 4) This gene encodes a member of the OSM9-like transient receptor potential channel (OTRPC) subfamily in the transient receptor potential (TRP) superfamily of ion channels. The encoded protein is a Ca2+-permeable, nonselective cation channel that is thought to be involved in the regulation of systemic osmotic pressure. Mutations in this gene are the cause of spondylometaphyseal and metatropic dysplasia and hereditary motor and sensory neuropathy type IIC. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2010]

TRPV4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TRPV4. . Gene score misZ: 1.9225 (greater than the threshold 3.09). Trascript score misZ: 3.5609 (greater than threshold 3.09). The gene has 63 curated pathogenic missense variants (we use a threshold of 10). The gene has 35 curated benign missense variants. GenCC has associacion of the gene with TRPV4-related bone disorder, metatropic dysplasia, Charcot-Marie-Tooth disease axonal type 2C, spondylometaphyseal dysplasia, Kozlowski type, familial avascular necrosis of femoral head, parastremmatic dwarfism, neuromuscular disease, autosomal dominant brachyolmia, familial digital arthropathy-brachydactyly, neuronopathy, distal hereditary motor, autosomal dominant 8, scapuloperoneal spinal muscular atrophy, autosomal dominant.

BS2

High AC in GnomAdExome4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRPV4	NM_021625.5 link	c.184G>A	p.Asp62Asn	missense_variant	2/16	ENST00000261740.7	NP_067638.3	Q9HBA0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TRPV4	ENST00000261740.7 link	c.184G>A	p.Asp62Asn	missense_variant	2/16	1	NM_021625.5	ENSP00000261740.2		Q9HBA0-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152116

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250670

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135596

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000109

AC:

AN:

1461756

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727160

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000108

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152116

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74308

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Familial digital arthropathy-brachydactyly

Pathogenic:1

Likely pathogenic, no assertion criteria provided

provider interpretation

Solve-RD Consortium

Jun 01, 2022

Variant confirmed as disease-causing by referring clinical team -

Charcot-Marie-Tooth disease

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Molecular Genetics Laboratory, London Health Sciences Centre

- -

Distal spinal muscular atrophy

Uncertain:1

Uncertain significance, no assertion criteria provided

research

Genesis Genome Database

Aug 14, 2019

- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 23, 2021

The p.D62N variant (also known as c.184G>A), located in coding exon 1 of the TRPV4 gene, results from a G to A substitution at nucleotide position 184. The aspartic acid at codon 62 is replaced by asparagine, an amino acid with highly similar properties. This variant was detected in an individual with Charcot-Marie-Tooth disease type 2C and her brother with bilateral talipes (Evangelista T et al. Neuromuscul Disord, 2015 Jun;25:516-21). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Charcot-Marie-Tooth disease axonal type 2C

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 05, 2024

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 62 of the TRPV4 protein (p.Asp62Asn). This variant is present in population databases (rs770149544, gnomAD 0.003%). This missense change has been observed in individual(s) with TRPV4-related conditions (PMID: 25900305). ClinVar contains an entry for this variant (Variation ID: 575960). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt TRPV4 protein function with a negative predictive value of 95%. 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. -

Spondylometaphyseal dysplasia, Kozlowski type;C0265281:Metatropic dysplasia;C0432227:Brachyrachia (short spine dysplasia);C0751335:Scapuloperoneal spinal muscular atrophy;C1838492:Neuronopathy, distal hereditary motor, autosomal dominant 8;C1847406:Familial digital arthropathy-brachydactyly;C1853710:Charcot-Marie-Tooth disease axonal type 2C;C1868616:Parastremmatic dwarfism;C3150755:Sodium serum level quantitative trait locus 1;C3159322:Spondyloepimetaphyseal dysplasia, Maroteaux type;C4479260:Avascular necrosis of femoral head, primary, 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 31, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.0095

BayesDel_noAF

Benign

-0.17

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

T;T;.;.;.;.

Eigen

Uncertain

0.19

Eigen_PC

Benign

0.088

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.94

.;D;D;D;D;D

M_CAP

Pathogenic

0.43

MetaRNN

Uncertain

0.63

D;D;D;D;D;D

MetaSVM

Uncertain

0.77

MutationAssessor

Benign

1.9

L;L;L;L;L;.

PrimateAI

Pathogenic

0.80

PROVEAN

Benign

-0.88

N;N;N;N;N;N

REVEL

Uncertain

0.39

Sift

Uncertain

0.017

D;D;D;D;D;T

Sift4G

Benign

0.30

T;T;T;T;T;T

Polyphen

0.99

D;D;D;D;D;D

Vest4

0.79

MutPred

0.26

Gain of catalytic residue at A58 (P = 0.0024);Gain of catalytic residue at A58 (P = 0.0024);Gain of catalytic residue at A58 (P = 0.0024);Gain of catalytic residue at A58 (P = 0.0024);Gain of catalytic residue at A58 (P = 0.0024);.;

MVP

0.92

MPC

1.1

ClinPred

0.86

GERP RS

3.7

Varity_R

0.11

gMVP

0.51

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over