rs28365126

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_021098.3(CACNA1H):​c.108G>C​(p.Pro36Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000451 in 1,322,040 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0022 ( 2 hom., cov: 30)
Exomes 𝑓: 0.00022 ( 1 hom. )

Consequence

CACNA1H
NM_021098.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.539

Publications

1 publications found
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]
CACNA1H Gene-Disease associations (from GenCC):
  • hyperaldosteronism, familial, type IV
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • childhood absence epilepsy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • epilepsy, childhood absence, susceptibility to, 6
    Inheritance: AD Classification: LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 16-1153845-G-C is Benign according to our data. Variant chr16-1153845-G-C is described in ClinVar as Likely_benign. ClinVar VariationId is 460039.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.539 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0022 (333/151266) while in subpopulation AFR AF = 0.00773 (320/41382). AF 95% confidence interval is 0.00704. There are 2 homozygotes in GnomAd4. There are 157 alleles in the male GnomAd4 subpopulation. Median coverage is 30. This position passed quality control check.
BS2
High AC in GnomAd4 at 333 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1HNM_021098.3 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 35 ENST00000348261.11 NP_066921.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1HENST00000348261.11 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 35 1 NM_021098.3 ENSP00000334198.7
CACNA1HENST00000569107.6 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 34 1 ENSP00000454990.2
CACNA1HENST00000711493.1 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 34 ENSP00000518778.1
CACNA1HENST00000565831.7 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 34 1 ENSP00000455840.1
CACNA1HENST00000711450.1 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 35 ENSP00000518762.1
CACNA1HENST00000564231.6 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 35 1 ENSP00000457555.2
CACNA1HENST00000638323.1 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 35 5 ENSP00000492267.1
CACNA1HENST00000562079.6 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 34 1 ENSP00000454581.2
CACNA1HENST00000711438.1 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 34 ENSP00000518754.1
CACNA1HENST00000711482.1 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 36 ENSP00000518771.1
CACNA1HENST00000711485.1 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 35 ENSP00000518774.1
CACNA1HENST00000711455.1 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 36 ENSP00000518768.1
CACNA1HENST00000711483.1 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 35 ENSP00000518772.1
CACNA1HENST00000711456.1 linkc.108G>C p.Pro36Pro synonymous_variant Exon 2 of 34 ENSP00000518769.1
CACNA1HENST00000621827.2 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 37 6 ENSP00000518766.1
CACNA1HENST00000637236.3 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 34 5 ENSP00000492650.2
CACNA1HENST00000639478.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 35 5 ENSP00000491945.1
CACNA1HENST00000640028.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 35 5 ENSP00000491488.1
CACNA1HENST00000711442.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 34 ENSP00000518758.1
CACNA1HENST00000711448.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 36 ENSP00000518760.1
CACNA1HENST00000711449.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 35 ENSP00000518761.1
CACNA1HENST00000711451.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 36 ENSP00000518763.1
CACNA1HENST00000711452.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 36 ENSP00000518764.1
CACNA1HENST00000711453.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 36 ENSP00000518765.1
CACNA1HENST00000711484.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 35 ENSP00000518773.1
CACNA1HENST00000711486.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 37 ENSP00000518775.1
CACNA1HENST00000711487.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 36 ENSP00000518776.1
CACNA1HENST00000711488.1 linkn.108G>C non_coding_transcript_exon_variant Exon 2 of 35 ENSP00000518777.1

Frequencies

GnomAD3 genomes
AF:
0.00221
AC:
334
AN:
151162
Hom.:
2
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.00778
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000724
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:
0.000962
GnomAD2 exomes
AF:
0.000423
AC:
6
AN:
14172
AF XY:
0.000111
show subpopulations
Gnomad AFR exome
AF:
0.0145
Gnomad AMR exome
AF:
0.000548
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000225
AC:
263
AN:
1170774
Hom.:
1
Cov.:
32
AF XY:
0.000210
AC XY:
119
AN XY:
567874
show subpopulations
African (AFR)
AF:
0.0101
AC:
235
AN:
23330
American (AMR)
AF:
0.000678
AC:
7
AN:
10318
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
16000
East Asian (EAS)
AF:
0.00
AC:
0
AN:
25976
South Asian (SAS)
AF:
0.00
AC:
0
AN:
46836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
28326
Middle Eastern (MID)
AF:
0.000626
AC:
2
AN:
3194
European-Non Finnish (NFE)
AF:
0.00000516
AC:
5
AN:
969776
Other (OTH)
AF:
0.000298
AC:
14
AN:
47018
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
14
28
42
56
70
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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
AF:
0.00220
AC:
333
AN:
151266
Hom.:
2
Cov.:
30
AF XY:
0.00212
AC XY:
157
AN XY:
73944
show subpopulations
African (AFR)
AF:
0.00773
AC:
320
AN:
41382
American (AMR)
AF:
0.000723
AC:
11
AN:
15220
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5072
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4806
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10324
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67692
Other (OTH)
AF:
0.000952
AC:
2
AN:
2100
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
17
34
50
67
84
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00107
Hom.:
0
Bravo
AF:
0.00241

ClinVar

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

Submissions by phenotype

not provided Benign:2
Apr 28, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

CACNA1H-related disorder Benign:1
Sep 20, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV Benign:1
Jan 18, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
8.4
DANN
Benign
0.71
PhyloP100
0.54
PromoterAI
0.029
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Mutation Taster
=100/0
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: rs28365126; hg19: chr16-1203845; API