1-181483756-C-G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001205293.3(CACNA1E):​c.12C>G​(p.Phe4Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,456,916 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. F4F) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CACNA1E
NM_001205293.3 missense

Scores

5
12
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.448
Variant links:
Genes affected
CACNA1E (HGNC:1392): (calcium voltage-gated channel subunit alpha1 E) Voltage-dependent calcium channels are multisubunit complexes consisting of alpha-1, alpha-2, beta, and delta subunits in a 1:1:1:1 ratio. These 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, gene expression, cell motility, cell division and cell death. This gene encodes the alpha-1E subunit of the R-type calcium channels, which belong to the 'high-voltage activated' group that maybe involved in the modulation of firing patterns of neurons important for information processing. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Apr 2011]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1ENM_001205293.3 linkc.12C>G p.Phe4Leu missense_variant Exon 1 of 48 ENST00000367573.7 NP_001192222.1 Q15878-1Q59FG1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1EENST00000367573.7 linkc.12C>G p.Phe4Leu missense_variant Exon 1 of 48 1 NM_001205293.3 ENSP00000356545.2 Q15878-1
CACNA1EENST00000360108.7 linkc.12C>G p.Phe4Leu missense_variant Exon 1 of 47 5 ENSP00000353222.3 F8W9Z1
CACNA1EENST00000367570.6 linkc.12C>G p.Phe4Leu missense_variant Exon 1 of 47 1 ENSP00000356542.1 Q15878-3
CACNA1EENST00000621791.4 linkc.12C>G p.Phe4Leu missense_variant Exon 1 of 46 1 ENSP00000481619.1 Q15878-2
CACNA1EENST00000524607.6 linkc.447C>G p.Phe149Leu missense_variant Exon 3 of 12 5 ENSP00000432038.2 E9PIE8

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1456916
Hom.:
0
Cov.:
31
AF XY:
0.00000276
AC XY:
2
AN XY:
724578
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33332
American (AMR)
AF:
0.00
AC:
0
AN:
44570
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25982
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39630
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85962
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53248
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4370
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1109736
Other (OTH)
AF:
0.00
AC:
0
AN:
60086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
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

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Feb 17, 2024
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 4 of the CACNA1E protein (p.Phe4Leu). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CACNA1E-related conditions. ClinVar contains an entry for this variant (Variation ID: 2087018). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on CACNA1E protein function. 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
0.99
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.030
CADD
Uncertain
23
DANN
Uncertain
0.98
DEOGEN2
Uncertain
0.65
.;.;.;.;D;T;.;D;.
Eigen
Uncertain
0.43
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.87
D;.;.;T;.;T;T;T;T
M_CAP
Pathogenic
0.38
D
MetaRNN
Uncertain
0.55
D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
0.89
D
MutationAssessor
Uncertain
2.4
.;M;M;.;M;.;M;M;M
PhyloP100
0.45
PrimateAI
Pathogenic
0.86
D
PROVEAN
Uncertain
-3.9
.;D;.;D;D;.;.;.;.
REVEL
Uncertain
0.53
Sift
Benign
0.060
.;T;.;T;T;.;.;.;.
Sift4G
Uncertain
0.046
.;D;D;D;D;D;D;D;D
Polyphen
0.99
.;D;.;.;.;.;D;.;.
Vest4
0.58, 0.59, 0.59, 0.61, 0.52, 0.60, 0.59, 0.60
MutPred
0.36
.;Loss of methylation at R3 (P = 0.0944);Loss of methylation at R3 (P = 0.0944);Loss of methylation at R3 (P = 0.0944);Loss of methylation at R3 (P = 0.0944);Loss of methylation at R3 (P = 0.0944);Loss of methylation at R3 (P = 0.0944);Loss of methylation at R3 (P = 0.0944);Loss of methylation at R3 (P = 0.0944);
MVP
0.87
MPC
1.4
ClinPred
0.81
D
GERP RS
3.1
PromoterAI
0.017
Neutral
Varity_R
0.30
gMVP
0.59
Mutation Taster
=262/38
polymorphism

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

Other links and lift over

dbSNP: rs1228809248; hg19: chr1-181452892; API