rs769859957

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM1PP3BS2

The NM_033337.3(CAV3):​c.399C>G​(p.Phe133Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,613,764 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

CAV3
NM_033337.3 missense

Scores

7
6
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: -1.27
Variant links:
Genes affected
CAV3 (HGNC:1529): (caveolin 3) This gene encodes a caveolin family member, which functions as a component of the caveolae plasma membranes found in most cell types. Caveolin proteins are proposed to be scaffolding proteins for organizing and concentrating certain caveolin-interacting molecules. Mutations identified in this gene lead to interference with protein oligomerization or intra-cellular routing, disrupting caveolae formation and resulting in Limb-Girdle muscular dystrophy type-1C (LGMD-1C), hyperCKemia or rippling muscle disease (RMD). Alternative splicing has been identified for this locus, with inclusion or exclusion of a differentially spliced intron. In addition, transcripts utilize multiple polyA sites and contain two potential translation initiation sites. [provided by RefSeq, Jul 2008]
OXTR (HGNC:8529): (oxytocin receptor) The protein encoded by this gene belongs to the G-protein coupled receptor family and acts as a receptor for oxytocin. Its activity is mediated by G proteins which activate a phosphatidylinositol-calcium second messenger system. The oxytocin-oxytocin receptor system plays an important role in the uterus during parturition. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM1
In a chain Caveolin-3 (size 150) in uniprot entity CAV3_HUMAN there are 58 pathogenic changes around while only 12 benign (83%) in NM_033337.3
PP3
MetaRNN computational evidence supports a deleterious effect, 0.823
BS2
High AC in GnomAdExome4 at 11 AD,Digenic gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CAV3NM_033337.3 linkc.399C>G p.Phe133Leu missense_variant Exon 2 of 2 ENST00000343849.3 NP_203123.1 P56539
CAV3NM_001234.5 linkc.399C>G p.Phe133Leu missense_variant Exon 2 of 3 NP_001225.1 P56539
OXTRXR_007095681.1 linkn.1885-3208G>C intron_variant Intron 4 of 4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CAV3ENST00000343849.3 linkc.399C>G p.Phe133Leu missense_variant Exon 2 of 2 1 NM_033337.3 ENSP00000341940.2 P56539
CAV3ENST00000397368.2 linkc.399C>G p.Phe133Leu missense_variant Exon 2 of 3 1 ENSP00000380525.2 P56539
CAV3ENST00000472766.1 linkn.155+11820C>G intron_variant Intron 1 of 2 2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152218
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251008
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135696
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000753
AC:
11
AN:
1461546
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
727084
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000899
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152218
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.0000482
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Sep 16, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 25630502) -

Long QT syndrome Uncertain:1
Dec 23, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces phenylalanine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 133 of the CAV3 protein (p.Phe133Leu). This variant is present in population databases (no rsID available, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with CAV3-related conditions. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.86
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.30
CADD
Benign
14
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.89
D;D
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.36
FATHMM_MKL
Benign
0.21
N
LIST_S2
Uncertain
0.96
.;D
M_CAP
Uncertain
0.21
D
MetaRNN
Pathogenic
0.82
D;D
MetaSVM
Uncertain
0.43
D
MutationAssessor
Uncertain
2.5
M;M
PrimateAI
Uncertain
0.62
T
PROVEAN
Pathogenic
-4.4
D;D
REVEL
Pathogenic
0.70
Sift
Benign
0.078
T;T
Sift4G
Benign
0.11
T;T
Polyphen
0.81
P;P
Vest4
0.59
MutPred
0.68
Loss of catalytic residue at F133 (P = 0.167);Loss of catalytic residue at F133 (P = 0.167);
MVP
1.0
MPC
0.84
ClinPred
0.98
D
GERP RS
-2.0
Varity_R
0.54
gMVP
0.88

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.

Other links and lift over

dbSNP: rs769859957; hg19: chr3-8787496; API