rs767083533

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PP2PP3

The NM_001128840.3(CACNA1D):​c.3709A>G​(p.Met1237Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000459 in 1,460,732 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: not found (cov: 33)
Exomes 𝑓: 0.000046 ( 0 hom. )

Consequence

CACNA1D
NM_001128840.3 missense

Scores

7
10
2

Clinical Significance

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

Conservation

PhyloP100: 7.49
Variant links:
Genes affected
CACNA1D (HGNC:1391): (calcium voltage-gated channel subunit alpha1 D) Voltage-dependent calcium channels mediate the entry of calcium ions into excitable cells, and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, and gene expression. Calcium channels are multisubunit complexes composed of alpha-1, beta, alpha-2/delta, and gamma subunits. The channel activity is directed by the pore-forming alpha-1 subunit, whereas the others act as auxiliary subunits regulating this activity. The distinctive properties of the calcium channel types are related primarily to the expression of a variety of alpha-1 isoforms, namely alpha-1A, B, C, D, E, and S. This gene encodes the alpha-1D subunit. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PP2
Missense variant in the CACNA1D gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 11 curated pathogenic missense variants (we use a threshold of 10). The gene has 27 curated benign missense variants. Gene score misZ: 4.5817 (above the threshold of 3.09). Trascript score misZ: 6.6073 (above the threshold of 3.09). GenCC associations: The gene is linked to sinoatrial node dysfunction and deafness, aldosterone-producing adenoma with seizures and neurological abnormalities.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.826

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1DNM_000720.4 linkc.3769A>G p.Met1257Val missense_variant Exon 30 of 49 ENST00000288139.11 NP_000711.1 Q01668-2Q59GD8
CACNA1DNM_001128840.3 linkc.3709A>G p.Met1237Val missense_variant Exon 29 of 48 ENST00000350061.11 NP_001122312.1 Q01668-1Q59GD8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1DENST00000288139.11 linkc.3769A>G p.Met1257Val missense_variant Exon 30 of 49 1 NM_000720.4 ENSP00000288139.3 Q01668-2
CACNA1DENST00000350061.11 linkc.3709A>G p.Met1237Val missense_variant Exon 29 of 48 1 NM_001128840.3 ENSP00000288133.5 Q01668-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251492
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135920
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:
0.0000527
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000459
AC:
67
AN:
1460732
Hom.:
0
Cov.:
30
AF XY:
0.0000399
AC XY:
29
AN XY:
726774
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:
0.0000603
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000724
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jan 24, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.Met1257Val variant in CACNA1D has not been previously reported in individu als with hearing loss, but has been identified in 1/66734 European chromosomes b y the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs767083533). Although this variant has been seen in the general population, its frequency is not high enough to rule out a pathogenic role. Computational predi ction tools and conservation analyses suggest that this variant may impact the p rotein, though this information is not predictive enough to determine pathogenic ity. In summary, the clinical significance of the p.Met1257Val is uncertain. -

not provided Uncertain:1
Dec 08, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1257 of the CACNA1D protein (p.Met1257Val). This variant is present in population databases (rs767083533, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with CACNA1D-related conditions. ClinVar contains an entry for this variant (Variation ID: 517201). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt CACNA1D protein function with a negative predictive value of 80%. 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
0.71
BayesDel_addAF
Pathogenic
0.36
D
BayesDel_noAF
Pathogenic
0.43
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.84
.;D;.;.;.;.;.;.;.;.;.
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.97
D;D;D;.;D;D;D;D;D;D;D
M_CAP
Uncertain
0.23
D
MetaRNN
Pathogenic
0.83
D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.5
.;M;.;.;.;M;.;.;.;.;.
PrimateAI
Uncertain
0.74
T
PROVEAN
Uncertain
-3.6
.;D;.;.;D;D;.;.;D;.;.
REVEL
Pathogenic
0.86
Sift
Uncertain
0.0070
.;D;.;.;D;D;.;.;T;.;.
Sift4G
Benign
0.061
.;T;.;.;T;T;.;.;T;.;.
Polyphen
0.88, 0.99, 0.88
.;P;.;D;D;.;.;.;P;.;.
Vest4
0.84, 0.84, 0.83
MutPred
0.53
.;Loss of stability (P = 0.0621);Loss of stability (P = 0.0621);.;.;Loss of stability (P = 0.0621);Loss of stability (P = 0.0621);.;.;.;.;
MVP
0.98
MPC
1.9
ClinPred
0.86
D
GERP RS
5.9
Varity_R
0.56
gMVP
0.87

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: rs767083533; hg19: chr3-53787632; API