rs776473889

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_021098.3(CACNA1H):​c.6593C>T​(p.Ala2198Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000521 in 1,536,860 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Synonymous variant affecting the same amino acid position (i.e. A2198A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

2
17

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.254
Variant links:
Genes affected
CACNA1H (HGNC:1395): (calcium voltage-gated channel subunit alpha1 H) This gene encodes a T-type member of the alpha-1 subunit family, a protein in the voltage-dependent calcium channel complex. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization and consist of a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. The alpha-1 subunit has 24 transmembrane segments and forms the pore through which ions pass into the cell. There are multiple isoforms of each of the proteins in the complex, either encoded by different genes or the result of alternative splicing of transcripts. Alternate transcriptional splice variants, encoding different isoforms, have been characterized for the gene described here. Studies suggest certain mutations in this gene lead to childhood absence epilepsy (CAE). [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.062434107).
BP6
Variant 16-1220525-C-T is Benign according to our data. Variant chr16-1220525-C-T is described in ClinVar as [Benign]. Clinvar id is 529570.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CACNA1HNM_021098.3 linkuse as main transcriptc.6593C>T p.Ala2198Val missense_variant 35/35 ENST00000348261.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CACNA1HENST00000348261.11 linkuse as main transcriptc.6593C>T p.Ala2198Val missense_variant 35/351 NM_021098.3 P4O95180-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
151960
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
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:
0.0000119
AC:
2
AN:
168064
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
91666
show subpopulations
Gnomad AFR exome
AF:
0.0000770
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:
0.0000127
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000361
AC:
5
AN:
1384900
Hom.:
0
Cov.:
35
AF XY:
0.00000439
AC XY:
3
AN XY:
683706
show subpopulations
Gnomad4 AFR exome
AF:
0.0000329
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:
0.00000370
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
151960
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74214
show subpopulations
Gnomad4 AFR
AF:
0.0000725
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:
0.0000378
ExAC
AF:
0.00000855
AC:
1

ClinVar

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

Submissions by phenotype

Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 15, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
7.3
DANN
Benign
0.93
DEOGEN2
Benign
0.081
T;.;.;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.023
N
LIST_S2
Benign
0.69
T;T;T;.
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.062
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.57
N;.;.;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-0.41
N;.;N;N
REVEL
Benign
0.034
Sift
Benign
0.21
T;.;T;T
Sift4G
Benign
0.35
T;.;T;T
Polyphen
0.0040
B;.;B;B
Vest4
0.017
MVP
0.33
ClinPred
0.096
T
GERP RS
0.0078
Varity_R
0.030
gMVP
0.055

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: rs776473889; hg19: chr16-1270525; COSMIC: COSV52356100; COSMIC: COSV52356100; API