rs775922797

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PVS1_ModerateBS2

The NM_021625.5(TRPV4):​c.1584+1G>C variant causes a splice donor, intron change. The variant allele was found at a frequency of 0.00000481 in 1,454,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

TRPV4
NM_021625.5 splice_donor, intron

Scores

5
1
Splicing: ADA: 1.000
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.95

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • metatropic dysplasia
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P, ClinGen
  • neuromuscular disease
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • spondylometaphyseal dysplasia, Kozlowski type
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, G2P, Orphanet
  • TRPV4-related bone disorder
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Illumina
  • autosomal dominant brachyolmia
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
  • Charcot-Marie-Tooth disease axonal type 2C
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
  • brachyolmia
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen
  • scapuloperoneal spinal muscular atrophy, autosomal dominant
    Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
  • spondyloepimetaphyseal dysplasia, Maroteaux type
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen
  • familial avascular necrosis of femoral head
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial digital arthropathy-brachydactyly
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • neuronopathy, distal hereditary motor, autosomal dominant 8
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • parastremmatic dwarfism
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.03555046 fraction of the gene. Cryptic splice site detected, with MaxEntScore 3.3, offset of -42, new splice context is: gagGTcatt. Cryptic site results in inframe change. If cryptic site found is not functional and variant results in exon loss, it results in inframe change.
BS2
High AC in GnomAdExome4 at 7 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021625.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TRPV4
NM_021625.5
MANE Select
c.1584+1G>C
splice_donor intron
N/ANP_067638.3
TRPV4
NM_001177431.1
c.1482+1G>C
splice_donor intron
N/ANP_001170902.1Q9HBA0-5
TRPV4
NM_001177428.1
c.1443+1G>C
splice_donor intron
N/ANP_001170899.1Q9HBA0-4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TRPV4
ENST00000261740.7
TSL:1 MANE Select
c.1584+1G>C
splice_donor intron
N/AENSP00000261740.2Q9HBA0-1
TRPV4
ENST00000418703.7
TSL:1
c.1584+1G>C
splice_donor intron
N/AENSP00000406191.2Q9HBA0-1
TRPV4
ENST00000536838.1
TSL:1
c.1482+1G>C
splice_donor intron
N/AENSP00000444336.1Q9HBA0-5

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000417
AC:
1
AN:
239816
AF XY:
0.00000776
show subpopulations
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:
0.00000922
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000481
AC:
7
AN:
1454936
Hom.:
0
Cov.:
33
AF XY:
0.00000830
AC XY:
6
AN XY:
722886
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33458
American (AMR)
AF:
0.0000229
AC:
1
AN:
43762
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25810
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39500
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84206
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52824
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5752
European-Non Finnish (NFE)
AF:
0.00000541
AC:
6
AN:
1109456
Other (OTH)
AF:
0.00
AC:
0
AN:
60168
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.432
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000825
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Charcot-Marie-Tooth disease axonal type 2C (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.41
D
BayesDel_noAF
Pathogenic
0.35
CADD
Pathogenic
35
DANN
Uncertain
0.99
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.83
FATHMM_MKL
Pathogenic
0.99
D
PhyloP100
7.0
GERP RS
4.3
Mutation Taster
=0/100
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.93
SpliceAI score (max)
0.98
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.59
Position offset: 43
DS_DL_spliceai
0.98
Position offset: 1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs775922797; hg19: chr12-110231734; API