rs781171340

Variant summary

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

The NM_001128840.3(CACNA1D):​c.3862G>A​(p.Glu1288Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000106 in 1,610,388 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 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

CACNA1D
NM_001128840.3 missense

Scores

7
8
4

Clinical Significance

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

Conservation

PhyloP100: 4.38
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]

Genome browser will be placed here

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, 0.834

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1DNM_000720.4 linkc.3922G>A p.Glu1308Lys missense_variant Exon 31 of 49 ENST00000288139.11 NP_000711.1 Q01668-2Q59GD8
CACNA1DNM_001128840.3 linkc.3862G>A p.Glu1288Lys missense_variant Exon 30 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.3922G>A p.Glu1308Lys missense_variant Exon 31 of 49 1 NM_000720.4 ENSP00000288139.3 Q01668-2
CACNA1DENST00000350061.11 linkc.3862G>A p.Glu1288Lys missense_variant Exon 30 of 48 1 NM_001128840.3 ENSP00000288133.5 Q01668-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152246
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251458
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135900
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:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000110
AC:
16
AN:
1458024
Hom.:
0
Cov.:
29
AF XY:
0.0000110
AC XY:
8
AN XY:
725610
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000902
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000656
AC:
1
AN:
152364
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74500
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000354
Hom.:
0
ExAC
AF:
0.0000247
AC:
3

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
May 02, 2016
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.Glu1308Lys variant in CACNA1D has not been previously reported in individu als with hearing loss, but has been identified in 3/16504 of South Asian chromos omes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs781171340). Computational prediction tools and conservation analysis do not provide strong support for or against an impact to the protein. In summary, the clinical significance of the p.Glu1308Lys variant is uncertain. -

not provided Uncertain:1
May 13, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. This sequence change replaces glutamic acid with lysine at codon 1308 of the CACNA1D protein (p.Glu1308Lys). The glutamic acid residue is highly conserved and there is a small physicochemical difference between glutamic acid and lysine. This variant is present in population databases (rs781171340, ExAC 0.02%). This variant has not been reported in the literature in individuals with CACNA1D-related conditions. ClinVar contains an entry for this variant (Variation ID: 504961). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.63
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Pathogenic
0.17
CADD
Pathogenic
30
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.83
.;D;.;.;.;.;.;.
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D;D;D;.;D;D;D;D
M_CAP
Uncertain
0.15
D
MetaRNN
Pathogenic
0.83
D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Benign
1.8
.;L;.;.;.;L;.;.
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.5
.;D;.;.;D;D;.;.
REVEL
Pathogenic
0.81
Sift
Benign
0.064
.;T;.;.;T;T;.;.
Sift4G
Benign
0.070
.;T;.;.;T;T;.;.
Polyphen
0.97, 1.0
.;D;.;D;D;.;.;.
Vest4
0.75, 0.73, 0.75
MutPred
0.69
.;Gain of ubiquitination at E1288 (P = 0.0128);Gain of ubiquitination at E1288 (P = 0.0128);.;.;Gain of ubiquitination at E1288 (P = 0.0128);Gain of ubiquitination at E1288 (P = 0.0128);.;
MVP
0.85
MPC
1.1
ClinPred
0.83
D
GERP RS
4.6
Varity_R
0.45
gMVP
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs781171340; hg19: chr3-53796100; COSMIC: COSV55440310; API