rs3825394

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 7P and 4B. PM1PM2PP2PP3_ModerateBS2

The NM_021625.5(TRPV4):​c.670A>T​(p.Arg224Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,680 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R224Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TRPV4
NM_021625.5 missense

Scores

10
4
5

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.163
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 3 benign, 8 uncertain in NM_021625.5
PM2
Very rare variant in population databases, with high coverage;
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). GenCC has associacion of 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.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.889
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TRPV4NM_021625.5 linkuse as main transcriptc.670A>T p.Arg224Trp missense_variant 4/16 ENST00000261740.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TRPV4ENST00000261740.7 linkuse as main transcriptc.670A>T p.Arg224Trp missense_variant 4/161 NM_021625.5 P1Q9HBA0-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000798
AC:
2
AN:
250748
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135592
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461680
Hom.:
0
Cov.:
64
AF XY:
0.00000550
AC XY:
4
AN XY:
727138
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:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.0000165
AC:
2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.27
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.80
D;D;.;.;.;.
Eigen
Benign
0.047
Eigen_PC
Benign
-0.044
FATHMM_MKL
Benign
0.24
N
LIST_S2
Uncertain
0.96
.;D;D;D;D;D
M_CAP
Pathogenic
0.32
D
MetaRNN
Pathogenic
0.89
D;D;D;D;D;D
MetaSVM
Pathogenic
0.81
D
MutationAssessor
Uncertain
2.5
M;M;M;M;M;.
MutationTaster
Benign
0.23
P;P;P;P;P;P;P;P
PrimateAI
Uncertain
0.59
T
PROVEAN
Pathogenic
-4.5
D;D;D;D;D;D
REVEL
Pathogenic
0.69
Sift
Uncertain
0.0010
D;D;D;D;D;D
Sift4G
Pathogenic
0.0010
D;D;D;D;D;D
Polyphen
1.0
D;D;D;D;D;D
Vest4
0.68
MutPred
0.60
Gain of catalytic residue at R219 (P = 0.024);Gain of catalytic residue at R219 (P = 0.024);Gain of catalytic residue at R219 (P = 0.024);Gain of catalytic residue at R219 (P = 0.024);Gain of catalytic residue at R219 (P = 0.024);.;
MVP
0.97
MPC
1.2
ClinPred
0.99
D
GERP RS
4.5
Varity_R
0.45
gMVP
0.71

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs3825394; hg19: chr12-110240838; API