rs375586314

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_021098.3(CACNA1H):​c.6748C>A​(p.Arg2250Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,609,328 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2250C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.24

Publications

2 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: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.15171853).
BS2
High AC in GnomAdExome4 at 17 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021098.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1H
NM_021098.3
MANE Select
c.6748C>Ap.Arg2250Ser
missense
Exon 35 of 35NP_066921.2
CACNA1H
NM_001005407.2
c.6730C>Ap.Arg2244Ser
missense
Exon 34 of 34NP_001005407.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1H
ENST00000348261.11
TSL:1 MANE Select
c.6748C>Ap.Arg2250Ser
missense
Exon 35 of 35ENSP00000334198.7
CACNA1H
ENST00000569107.6
TSL:1
c.6763C>Ap.Arg2255Ser
missense
Exon 34 of 34ENSP00000454990.2
CACNA1H
ENST00000711493.1
c.6733C>Ap.Arg2245Ser
missense
Exon 34 of 34ENSP00000518778.1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151990
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000117
AC:
17
AN:
1457338
Hom.:
0
Cov.:
35
AF XY:
0.00000690
AC XY:
5
AN XY:
724814
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33386
American (AMR)
AF:
0.00
AC:
0
AN:
44158
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26030
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39552
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85964
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51782
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5710
European-Non Finnish (NFE)
AF:
0.0000144
AC:
16
AN:
1110550
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60206
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151990
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74230
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41394
American (AMR)
AF:
0.00
AC:
0
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5158
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67936
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000225
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.38
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.17
T
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.24
FATHMM_MKL
Benign
0.25
N
LIST_S2
Benign
0.79
T
M_CAP
Uncertain
0.22
D
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.3
M
PhyloP100
1.2
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.76
N
REVEL
Benign
0.091
Sift
Benign
0.046
D
Sift4G
Benign
0.43
T
Polyphen
0.031
B
Vest4
0.32
MutPred
0.27
Gain of phosphorylation at R2250 (P = 0.0378)
MVP
0.37
ClinPred
0.79
D
GERP RS
3.5
Varity_R
0.21
gMVP
0.32
Mutation Taster
=81/19
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: rs375586314; hg19: chr16-1270680; API