rs2235634

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_021098.3(CACNA1H):​c.5244+7G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.137 in 1,608,102 control chromosomes in the GnomAD database, including 16,732 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.11 ( 1224 hom., cov: 33)
Exomes 𝑓: 0.14 ( 15508 hom. )

Consequence

CACNA1H
NM_021098.3 splice_region, intron

Scores

2
Splicing: ADA: 0.0001214
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -1.60
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 16-1215600-G-A is Benign according to our data. Variant chr16-1215600-G-A is described in ClinVar as [Benign]. Clinvar id is 585649.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-1215600-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.222 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CACNA1HNM_021098.3 linkuse as main transcriptc.5244+7G>A splice_region_variant, intron_variant ENST00000348261.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CACNA1HENST00000348261.11 linkuse as main transcriptc.5244+7G>A splice_region_variant, intron_variant 1 NM_021098.3 P4O95180-1

Frequencies

GnomAD3 genomes
AF:
0.110
AC:
16714
AN:
152150
Hom.:
1225
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0248
Gnomad AMI
AF:
0.179
Gnomad AMR
AF:
0.0964
Gnomad ASJ
AF:
0.200
Gnomad EAS
AF:
0.233
Gnomad SAS
AF:
0.183
Gnomad FIN
AF:
0.141
Gnomad MID
AF:
0.184
Gnomad NFE
AF:
0.139
Gnomad OTH
AF:
0.127
GnomAD3 exomes
AF:
0.138
AC:
32808
AN:
238482
Hom.:
2557
AF XY:
0.143
AC XY:
18635
AN XY:
130216
show subpopulations
Gnomad AFR exome
AF:
0.0199
Gnomad AMR exome
AF:
0.0791
Gnomad ASJ exome
AF:
0.199
Gnomad EAS exome
AF:
0.212
Gnomad SAS exome
AF:
0.174
Gnomad FIN exome
AF:
0.139
Gnomad NFE exome
AF:
0.144
Gnomad OTH exome
AF:
0.140
GnomAD4 exome
AF:
0.140
AC:
203208
AN:
1455834
Hom.:
15508
Cov.:
35
AF XY:
0.142
AC XY:
102649
AN XY:
723924
show subpopulations
Gnomad4 AFR exome
AF:
0.0201
Gnomad4 AMR exome
AF:
0.0822
Gnomad4 ASJ exome
AF:
0.199
Gnomad4 EAS exome
AF:
0.265
Gnomad4 SAS exome
AF:
0.174
Gnomad4 FIN exome
AF:
0.144
Gnomad4 NFE exome
AF:
0.136
Gnomad4 OTH exome
AF:
0.146
GnomAD4 genome
AF:
0.110
AC:
16707
AN:
152268
Hom.:
1224
Cov.:
33
AF XY:
0.111
AC XY:
8252
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.0247
Gnomad4 AMR
AF:
0.0961
Gnomad4 ASJ
AF:
0.200
Gnomad4 EAS
AF:
0.233
Gnomad4 SAS
AF:
0.182
Gnomad4 FIN
AF:
0.141
Gnomad4 NFE
AF:
0.139
Gnomad4 OTH
AF:
0.126
Alfa
AF:
0.126
Hom.:
638
Bravo
AF:
0.103
Asia WGS
AF:
0.174
AC:
606
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxAug 20, 2019- -
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsApr 20, 2017- -
Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
1.1
DANN
Benign
0.95

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00012
dbscSNV1_RF
Benign
0.0020
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: rs2235634; hg19: chr16-1265600; COSMIC: COSV61991473; COSMIC: COSV61991473; API