12-2682561-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000719.7(CACNA1C):​c.5456G>T​(p.Arg1819Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 152,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1819Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

CACNA1C
NM_000719.7 missense

Scores

7
10

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.18

Publications

3 publications found
Variant links:
Genes affected
CACNA1C (HGNC:1390): (calcium voltage-gated channel subunit alpha1 C) This gene encodes an alpha-1 subunit of a voltage-dependent calcium channel. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization. The alpha-1 subunit consists of 24 transmembrane segments and forms the pore through which ions pass into the cell. The calcium channel consists of a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. There are multiple isoforms of each of these proteins, either encoded by different genes or the result of alternative splicing of transcripts. The protein encoded by this gene binds to and is inhibited by dihydropyridine. Alternative splicing results in many transcript variants encoding different proteins. Some of the predicted proteins may not produce functional ion channel subunits. [provided by RefSeq, Oct 2012]
ITFG2-AS1 (HGNC:53128): (ITFG2 antisense RNA 1)
CACNA1C-AS1 (HGNC:40119): (CACNA1C antisense RNA 1)

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ACMG classification

Classification was made for transcript

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

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25465715).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000719.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1C
NM_000719.7
MANE Select
c.5456G>Tp.Arg1819Leu
missense
Exon 43 of 47NP_000710.5
CACNA1C
NM_001167623.2
MANE Plus Clinical
c.5456G>Tp.Arg1819Leu
missense
Exon 43 of 47NP_001161095.1Q13936-37
CACNA1C
NM_199460.4
c.5705G>Tp.Arg1902Leu
missense
Exon 46 of 50NP_955630.3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1C
ENST00000399603.6
TSL:5 MANE Plus Clinical
c.5456G>Tp.Arg1819Leu
missense
Exon 43 of 47ENSP00000382512.1Q13936-37
CACNA1C
ENST00000399655.6
TSL:1 MANE Select
c.5456G>Tp.Arg1819Leu
missense
Exon 43 of 47ENSP00000382563.1Q13936-12
CACNA1C
ENST00000682544.1
c.5795G>Tp.Arg1932Leu
missense
Exon 46 of 50ENSP00000507184.1A0A804HIR0

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152080
Hom.:
0
Cov.:
32
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
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152080
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74270
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41418
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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

Genome 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

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
CardioboostArm
Benign
0.0000030
BayesDel_addAF
Uncertain
0.16
D
BayesDel_noAF
Uncertain
-0.010
CADD
Benign
16
DANN
Uncertain
0.99
DEOGEN2
Benign
0.016
T
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.19
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Uncertain
0.20
D
MetaRNN
Benign
0.25
T
MetaSVM
Uncertain
-0.14
T
PhyloP100
3.2
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-2.3
N
REVEL
Uncertain
0.44
Sift
Benign
0.039
D
Sift4G
Benign
0.31
T
Polyphen
0.057
B
Vest4
0.46
MVP
0.77
MPC
0.26
ClinPred
0.64
D
GERP RS
3.9
gMVP
0.46
Mutation Taster
=67/33
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: rs764212214; hg19: chr12-2791727; COSMIC: COSV100222074; COSMIC: COSV100222074; API