rs370039255

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_021098.3(CACNA1H):​c.3555G>A​(p.Ala1185Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00114 in 1,545,024 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A1185A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00068 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0012 ( 1 hom. )

Consequence

CACNA1H
NM_021098.3 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -3.15

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 -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 16-1209223-G-A is Benign according to our data. Variant chr16-1209223-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 96010.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000676 (103/152280) while in subpopulation AMR AF = 0.00118 (18/15306). AF 95% confidence interval is 0.000928. There are 0 homozygotes in GnomAd4. There are 36 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 103 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1HNM_021098.3 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 35 ENST00000348261.11 NP_066921.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1HENST00000348261.11 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 35 1 NM_021098.3 ENSP00000334198.7
CACNA1HENST00000569107.6 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 34 1 ENSP00000454990.2
CACNA1HENST00000711493.1 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 34 ENSP00000518778.1
CACNA1HENST00000565831.7 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 34 1 ENSP00000455840.1
CACNA1HENST00000711450.1 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 35 ENSP00000518762.1
CACNA1HENST00000564231.6 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 35 1 ENSP00000457555.2
CACNA1HENST00000638323.1 linkc.3516G>A p.Ala1172Ala synonymous_variant Exon 17 of 35 5 ENSP00000492267.1
CACNA1HENST00000562079.6 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 34 1 ENSP00000454581.2
CACNA1HENST00000711438.1 linkc.3516G>A p.Ala1172Ala synonymous_variant Exon 17 of 34 ENSP00000518754.1
CACNA1HENST00000711482.1 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 36 ENSP00000518771.1
CACNA1HENST00000711485.1 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 35 ENSP00000518774.1
CACNA1HENST00000711455.1 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 36 ENSP00000518768.1
CACNA1HENST00000711483.1 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 35 ENSP00000518772.1
CACNA1HENST00000711456.1 linkc.3555G>A p.Ala1185Ala synonymous_variant Exon 17 of 34 ENSP00000518769.1
CACNA1HENST00000621827.2 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 37 6 ENSP00000518766.1
CACNA1HENST00000637236.3 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 34 5 ENSP00000492650.2
CACNA1HENST00000639478.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 35 5 ENSP00000491945.1
CACNA1HENST00000640028.1 linkn.*1468G>A non_coding_transcript_exon_variant Exon 17 of 35 5 ENSP00000491488.1
CACNA1HENST00000711442.1 linkn.*3002G>A non_coding_transcript_exon_variant Exon 16 of 34 ENSP00000518758.1
CACNA1HENST00000711448.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 36 ENSP00000518760.1
CACNA1HENST00000711449.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 35 ENSP00000518761.1
CACNA1HENST00000711451.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 36 ENSP00000518763.1
CACNA1HENST00000711452.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 36 ENSP00000518764.1
CACNA1HENST00000711453.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 36 ENSP00000518765.1
CACNA1HENST00000711484.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 35 ENSP00000518773.1
CACNA1HENST00000711486.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 37 ENSP00000518775.1
CACNA1HENST00000711487.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 36 ENSP00000518776.1
CACNA1HENST00000711488.1 linkn.3555G>A non_coding_transcript_exon_variant Exon 17 of 35 ENSP00000518777.1
CACNA1HENST00000640028.1 linkn.*1468G>A 3_prime_UTR_variant Exon 17 of 35 5 ENSP00000491488.1
CACNA1HENST00000711442.1 linkn.*3002G>A 3_prime_UTR_variant Exon 16 of 34 ENSP00000518758.1

Frequencies

GnomAD3 genomes
AF:
0.000677
AC:
103
AN:
152166
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00118
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:
0.00113
Gnomad OTH
AF:
0.000958
GnomAD2 exomes
AF:
0.000739
AC:
102
AN:
137960
AF XY:
0.000596
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00164
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000195
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000977
Gnomad OTH exome
AF:
0.00146
GnomAD4 exome
AF:
0.00119
AC:
1659
AN:
1392744
Hom.:
1
Cov.:
31
AF XY:
0.00117
AC XY:
801
AN XY:
687386
show subpopulations
African (AFR)
AF:
0.000227
AC:
7
AN:
30892
American (AMR)
AF:
0.00151
AC:
54
AN:
35732
Ashkenazi Jewish (ASJ)
AF:
0.0000400
AC:
1
AN:
25004
East Asian (EAS)
AF:
0.0000565
AC:
2
AN:
35394
South Asian (SAS)
AF:
0.000165
AC:
13
AN:
78944
European-Finnish (FIN)
AF:
0.0000446
AC:
2
AN:
44812
Middle Eastern (MID)
AF:
0.000352
AC:
2
AN:
5682
European-Non Finnish (NFE)
AF:
0.00139
AC:
1497
AN:
1078444
Other (OTH)
AF:
0.00140
AC:
81
AN:
57840
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
115
231
346
462
577
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
60
120
180
240
300
<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:
0.000676
AC:
103
AN:
152280
Hom.:
0
Cov.:
33
AF XY:
0.000484
AC XY:
36
AN XY:
74456
show subpopulations
African (AFR)
AF:
0.000144
AC:
6
AN:
41570
American (AMR)
AF:
0.00118
AC:
18
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00113
AC:
77
AN:
67998
Other (OTH)
AF:
0.000948
AC:
2
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
4
9
13
18
22
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
Alfa
AF:
0.000745
Hom.:
0
Bravo
AF:
0.000914

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Jul 03, 2013
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Sep 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

CACNA1H: BS1, BS2

CACNA1H-related disorder Benign:1
Nov 12, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely 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 13, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: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
-0.83
CADD
Benign
0.13
DANN
Benign
0.76
PhyloP100
-3.2
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: rs370039255; hg19: chr16-1259223; API