Genetic Variant NM_021625.5:c.935C>T (chr12-109798831-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 4P and 4B. PM1PP3PP5BS2

The NM_021625.5(TRPV4):c.935C>T(p.Ala312Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A312A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

TRPV4
NM_021625.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1

Conservation

PhyloP100: 9.49

Publications

2 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

TRPV4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM1

In a hotspot region, there are 7 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in NM_021625.5

PP3

MetaRNN computational evidence supports a deleterious effect, 0.803

PP5

Variant 12-109798831-G-A is Pathogenic according to our data. Variant chr12-109798831-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 576802.

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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TRPV4	NM_021625.5	MANE Select	c.935C>T	p.Ala312Val	missense	Exon 6 of 16	NP_067638.3
TRPV4	NM_001177431.1		c.833C>T	p.Ala278Val	missense	Exon 6 of 16	NP_001170902.1	Q9HBA0-5
TRPV4	NM_001177428.1		c.794C>T	p.Ala265Val	missense	Exon 4 of 14	NP_001170899.1	Q9HBA0-4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TRPV4	ENST00000261740.7	TSL:1 MANE Select	c.935C>T	p.Ala312Val	missense	Exon 6 of 16	ENSP00000261740.2	Q9HBA0-1
TRPV4	ENST00000418703.7	TSL:1	c.935C>T	p.Ala312Val	missense	Exon 5 of 15	ENSP00000406191.2	Q9HBA0-1
TRPV4	ENST00000536838.1	TSL:1	c.833C>T	p.Ala278Val	missense	Exon 6 of 16	ENSP00000444336.1	Q9HBA0-5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000797

AC:

AN:

250996

AF XY:

0.00000737

show subpopulations

Gnomad AFR exome

AF:

0.0000615

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:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461802

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727200

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53330

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1112010

Other (OTH)

AF:

0.0000166

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.461

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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.:

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.00000824

AC:

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Charcot-Marie-Tooth disease axonal type 2C (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.56

BayesDel_addAF

Pathogenic

0.37

BayesDel_noAF

Pathogenic

0.30

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.81

Eigen

Pathogenic

0.70

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.93

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.80

MetaSVM

Uncertain

0.19

MutationAssessor

Uncertain

2.4

PhyloP100

9.5

PrimateAI

Uncertain

0.71

PROVEAN

Uncertain

-2.9

REVEL

Pathogenic

0.68

Sift

Benign

0.045

Sift4G

Uncertain

0.055

Polyphen

1.0

Vest4

0.73

MVP

0.92

MPC

1.1

ClinPred

0.93

GERP RS

4.4

Varity_R

0.38

gMVP

0.79

Mutation Taster

=1/99

disease causing (ClinVar)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over