rs1054645

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_021098.3(CACNA1H):​c.6230G>A​(p.Arg2077His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.608 in 1,523,120 control chromosomes in the GnomAD database, including 285,545 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2077C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.65 ( 32651 hom., cov: 35)
Exomes 𝑓: 0.60 ( 252894 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

1
17

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.784

Publications

49 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=8.9449054E-7).
BP6
Variant 16-1220162-G-A is Benign according to our data. Variant chr16-1220162-G-A is described in ClinVar as Benign. ClinVar VariationId is 96016.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.855 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1HNM_021098.3 linkc.6230G>A p.Arg2077His missense_variant Exon 35 of 35 ENST00000348261.11 NP_066921.2 O95180-1B3KQH9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1HENST00000348261.11 linkc.6230G>A p.Arg2077His missense_variant Exon 35 of 35 1 NM_021098.3 ENSP00000334198.7 O95180-1
CACNA1HENST00000569107.6 linkc.6245G>A p.Arg2082His missense_variant Exon 34 of 34 1 ENSP00000454990.2 H3BNT0
CACNA1HENST00000711493.1 linkc.6215G>A p.Arg2072His missense_variant Exon 34 of 34 ENSP00000518778.1
CACNA1HENST00000565831.7 linkc.6212G>A p.Arg2071His missense_variant Exon 34 of 34 1 ENSP00000455840.1 O95180-2
CACNA1HENST00000711450.1 linkc.6212G>A p.Arg2071His missense_variant Exon 35 of 35 ENSP00000518762.1
CACNA1HENST00000564231.6 linkc.6197G>A p.Arg2066His missense_variant Exon 35 of 35 1 ENSP00000457555.2 H3BUA8
CACNA1HENST00000638323.1 linkc.6191G>A p.Arg2064His missense_variant Exon 35 of 35 5 ENSP00000492267.1 A0A1W2PR14
CACNA1HENST00000562079.6 linkc.6179G>A p.Arg2060His missense_variant Exon 34 of 34 1 ENSP00000454581.2 H3BMW6
CACNA1HENST00000711438.1 linkc.6173G>A p.Arg2058His missense_variant Exon 34 of 34 ENSP00000518754.1
CACNA1HENST00000711482.1 linkc.6123G>A p.Ala2041Ala splice_region_variant, synonymous_variant Exon 36 of 36 ENSP00000518771.1
CACNA1HENST00000711485.1 linkc.6072G>A p.Ala2024Ala splice_region_variant, synonymous_variant Exon 35 of 35 ENSP00000518774.1
CACNA1HENST00000711455.1 linkc.6045G>A p.Ala2015Ala splice_region_variant, synonymous_variant Exon 36 of 36 ENSP00000518768.1
CACNA1HENST00000637236.3 linkn.*2149G>A non_coding_transcript_exon_variant Exon 34 of 34 5 ENSP00000492650.2 A0A1W2PS38
CACNA1HENST00000639478.1 linkn.*1278G>A non_coding_transcript_exon_variant Exon 35 of 35 5 ENSP00000491945.1 A0A1W2PQW2
CACNA1HENST00000640028.1 linkn.*4048G>A non_coding_transcript_exon_variant Exon 35 of 35 5 ENSP00000491488.1 A0A1W2PQ19
CACNA1HENST00000711442.1 linkn.*5674G>A non_coding_transcript_exon_variant Exon 33 of 34 ENSP00000518758.1
CACNA1HENST00000711448.1 linkn.*1171G>A non_coding_transcript_exon_variant Exon 36 of 36 ENSP00000518760.1
CACNA1HENST00000711449.1 linkn.*1089G>A non_coding_transcript_exon_variant Exon 35 of 35 ENSP00000518761.1
CACNA1HENST00000711451.1 linkn.*1809G>A non_coding_transcript_exon_variant Exon 36 of 36 ENSP00000518763.1
CACNA1HENST00000711452.1 linkn.*897G>A non_coding_transcript_exon_variant Exon 36 of 36 ENSP00000518764.1
CACNA1HENST00000711453.1 linkn.*864G>A non_coding_transcript_exon_variant Exon 36 of 36 ENSP00000518765.1
CACNA1HENST00000711484.1 linkn.*144G>A non_coding_transcript_exon_variant Exon 34 of 35 ENSP00000518773.1
CACNA1HENST00000711486.1 linkn.6230G>A non_coding_transcript_exon_variant Exon 35 of 37 ENSP00000518775.1
CACNA1HENST00000711487.1 linkn.6197G>A non_coding_transcript_exon_variant Exon 35 of 36 ENSP00000518776.1
CACNA1HENST00000711488.1 linkn.*1346G>A non_coding_transcript_exon_variant Exon 35 of 35 ENSP00000518777.1
CACNA1HENST00000711483.1 linkc.*144G>A 3_prime_UTR_variant Exon 35 of 35 ENSP00000518772.1
CACNA1HENST00000711456.1 linkc.*144G>A 3_prime_UTR_variant Exon 34 of 34 ENSP00000518769.1
CACNA1HENST00000637236.3 linkn.*2149G>A 3_prime_UTR_variant Exon 34 of 34 5 ENSP00000492650.2 A0A1W2PS38
CACNA1HENST00000639478.1 linkn.*1278G>A 3_prime_UTR_variant Exon 35 of 35 5 ENSP00000491945.1 A0A1W2PQW2
CACNA1HENST00000640028.1 linkn.*4048G>A 3_prime_UTR_variant Exon 35 of 35 5 ENSP00000491488.1 A0A1W2PQ19
CACNA1HENST00000711442.1 linkn.*5674G>A 3_prime_UTR_variant Exon 33 of 34 ENSP00000518758.1
CACNA1HENST00000711448.1 linkn.*1171G>A 3_prime_UTR_variant Exon 36 of 36 ENSP00000518760.1
CACNA1HENST00000711449.1 linkn.*1089G>A 3_prime_UTR_variant Exon 35 of 35 ENSP00000518761.1
CACNA1HENST00000711451.1 linkn.*1809G>A 3_prime_UTR_variant Exon 36 of 36 ENSP00000518763.1
CACNA1HENST00000711452.1 linkn.*897G>A 3_prime_UTR_variant Exon 36 of 36 ENSP00000518764.1
CACNA1HENST00000711453.1 linkn.*864G>A 3_prime_UTR_variant Exon 36 of 36 ENSP00000518765.1
CACNA1HENST00000711484.1 linkn.*144G>A 3_prime_UTR_variant Exon 34 of 35 ENSP00000518773.1
CACNA1HENST00000711488.1 linkn.*1346G>A 3_prime_UTR_variant Exon 35 of 35 ENSP00000518777.1
CACNA1HENST00000621827.2 linkn.6121+109G>A intron_variant Intron 35 of 36 6 ENSP00000518766.1

Frequencies

GnomAD3 genomes
AF:
0.650
AC:
98790
AN:
152052
Hom.:
32623
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.700
Gnomad AMI
AF:
0.573
Gnomad AMR
AF:
0.702
Gnomad ASJ
AF:
0.711
Gnomad EAS
AF:
0.876
Gnomad SAS
AF:
0.559
Gnomad FIN
AF:
0.710
Gnomad MID
AF:
0.709
Gnomad NFE
AF:
0.585
Gnomad OTH
AF:
0.655
GnomAD2 exomes
AF:
0.657
AC:
109910
AN:
167372
AF XY:
0.646
show subpopulations
Gnomad AFR exome
AF:
0.705
Gnomad AMR exome
AF:
0.747
Gnomad ASJ exome
AF:
0.709
Gnomad EAS exome
AF:
0.895
Gnomad FIN exome
AF:
0.701
Gnomad NFE exome
AF:
0.595
Gnomad OTH exome
AF:
0.646
GnomAD4 exome
AF:
0.604
AC:
827558
AN:
1370950
Hom.:
252894
Cov.:
70
AF XY:
0.602
AC XY:
405972
AN XY:
674462
show subpopulations
African (AFR)
AF:
0.709
AC:
20105
AN:
28372
American (AMR)
AF:
0.735
AC:
24437
AN:
33246
Ashkenazi Jewish (ASJ)
AF:
0.697
AC:
14833
AN:
21278
East Asian (EAS)
AF:
0.901
AC:
32252
AN:
35778
South Asian (SAS)
AF:
0.561
AC:
40542
AN:
72308
European-Finnish (FIN)
AF:
0.690
AC:
33565
AN:
48680
Middle Eastern (MID)
AF:
0.702
AC:
3785
AN:
5390
European-Non Finnish (NFE)
AF:
0.582
AC:
622803
AN:
1069526
Other (OTH)
AF:
0.625
AC:
35236
AN:
56372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
19727
39454
59182
78909
98636
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
17760
35520
53280
71040
88800
<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:
0.650
AC:
98862
AN:
152170
Hom.:
32651
Cov.:
35
AF XY:
0.657
AC XY:
48845
AN XY:
74366
show subpopulations
African (AFR)
AF:
0.699
AC:
29030
AN:
41522
American (AMR)
AF:
0.703
AC:
10758
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.711
AC:
2469
AN:
3472
East Asian (EAS)
AF:
0.876
AC:
4513
AN:
5152
South Asian (SAS)
AF:
0.559
AC:
2692
AN:
4820
European-Finnish (FIN)
AF:
0.710
AC:
7535
AN:
10610
Middle Eastern (MID)
AF:
0.701
AC:
206
AN:
294
European-Non Finnish (NFE)
AF:
0.585
AC:
39742
AN:
67968
Other (OTH)
AF:
0.660
AC:
1396
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
1845
3690
5534
7379
9224
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
794
1588
2382
3176
3970
<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:
0.612
Hom.:
76473
Bravo
AF:
0.659
TwinsUK
AF:
0.570
AC:
2113
ALSPAC
AF:
0.589
AC:
2269
ESP6500AA
AF:
0.728
AC:
2894
ESP6500EA
AF:
0.608
AC:
5031
ExAC
AF:
0.627
AC:
73990
Asia WGS
AF:
0.720
AC:
2501
AN:
3476

ClinVar

Significance: Benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Apr 20, 2017
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

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

- -

Nov 27, 2019
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Epilepsy, childhood absence, susceptibility to, 6 Benign:2
-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jul 28, 2017
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

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

- -

Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV Benign:1
Feb 04, 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
AlphaMissense
Benign
0.065
BayesDel_addAF
Benign
-0.70
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
0.74
DANN
Uncertain
0.99
DEOGEN2
Benign
0.086
T;.;.;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.60
T;T;T;.
MetaRNN
Benign
8.9e-7
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.11
N;.;.;.
PhyloP100
-0.78
PrimateAI
Benign
0.41
T
PROVEAN
Benign
0.45
N;.;N;N
REVEL
Benign
0.033
Sift
Benign
0.59
T;.;T;T
Sift4G
Benign
0.59
T;.;T;T
Polyphen
0.0
B;.;B;B
Vest4
0.033
ClinPred
0.0018
T
GERP RS
0.76
Varity_R
0.022
gMVP
0.20
Mutation Taster
=98/2
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs1054645; hg19: chr16-1270162; COSMIC: COSV52354598; COSMIC: COSV52354598; API