rs3751664

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_021098.3(CACNA1H):​c.2362C>A​(p.Arg788Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000141 in 1,418,064 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R788C) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

2
8
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.252

Publications

41 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: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1HNM_021098.3 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 35 ENST00000348261.11 NP_066921.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1HENST00000348261.11 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 35 1 NM_021098.3 ENSP00000334198.7
CACNA1HENST00000569107.6 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 34 1 ENSP00000454990.2
CACNA1HENST00000711493.1 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 34 ENSP00000518778.1
CACNA1HENST00000565831.7 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 34 1 ENSP00000455840.1
CACNA1HENST00000711450.1 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 35 ENSP00000518762.1
CACNA1HENST00000564231.6 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 35 1 ENSP00000457555.2
CACNA1HENST00000638323.1 linkc.2323C>A p.Arg775Ser missense_variant Exon 10 of 35 5 ENSP00000492267.1
CACNA1HENST00000562079.6 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 34 1 ENSP00000454581.2
CACNA1HENST00000711438.1 linkc.2323C>A p.Arg775Ser missense_variant Exon 10 of 34 ENSP00000518754.1
CACNA1HENST00000711482.1 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 36 ENSP00000518771.1
CACNA1HENST00000711485.1 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 35 ENSP00000518774.1
CACNA1HENST00000711455.1 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 36 ENSP00000518768.1
CACNA1HENST00000711483.1 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 35 ENSP00000518772.1
CACNA1HENST00000711456.1 linkc.2362C>A p.Arg788Ser missense_variant Exon 10 of 34 ENSP00000518769.1
CACNA1HENST00000621827.2 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 37 6 ENSP00000518766.1
CACNA1HENST00000637236.3 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 34 5 ENSP00000492650.2
CACNA1HENST00000639478.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 35 5 ENSP00000491945.1
CACNA1HENST00000640028.1 linkn.*275C>A non_coding_transcript_exon_variant Exon 10 of 35 5 ENSP00000491488.1
CACNA1HENST00000711442.1 linkn.*1809C>A non_coding_transcript_exon_variant Exon 9 of 34 ENSP00000518758.1
CACNA1HENST00000711448.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 36 ENSP00000518760.1
CACNA1HENST00000711449.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 35 ENSP00000518761.1
CACNA1HENST00000711451.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 36 ENSP00000518763.1
CACNA1HENST00000711452.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 36 ENSP00000518764.1
CACNA1HENST00000711453.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 36 ENSP00000518765.1
CACNA1HENST00000711484.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 35 ENSP00000518773.1
CACNA1HENST00000711486.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 37 ENSP00000518775.1
CACNA1HENST00000711487.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 36 ENSP00000518776.1
CACNA1HENST00000711488.1 linkn.2362C>A non_coding_transcript_exon_variant Exon 10 of 35 ENSP00000518777.1
CACNA1HENST00000640028.1 linkn.*275C>A 3_prime_UTR_variant Exon 10 of 35 5 ENSP00000491488.1
CACNA1HENST00000711442.1 linkn.*1809C>A 3_prime_UTR_variant Exon 9 of 34 ENSP00000518758.1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000940
AC:
2
AN:
212698
AF XY:
0.00000872
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000115
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000141
AC:
2
AN:
1418064
Hom.:
0
Cov.:
33
AF XY:
0.00000143
AC XY:
1
AN XY:
700654
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32506
American (AMR)
AF:
0.00
AC:
0
AN:
39702
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
23010
East Asian (EAS)
AF:
0.0000509
AC:
2
AN:
39306
South Asian (SAS)
AF:
0.00
AC:
0
AN:
78220
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50042
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5554
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1091242
Other (OTH)
AF:
0.00
AC:
0
AN:
58482
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
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

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
Cov.:
33
ExAC
AF:
0.00000834
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Uncertain
0.079
D
BayesDel_noAF
Uncertain
0.10
CADD
Benign
15
DANN
Uncertain
0.99
DEOGEN2
Benign
0.23
T;.;.;.
Eigen
Benign
-0.43
Eigen_PC
Benign
-0.55
FATHMM_MKL
Benign
0.029
N
LIST_S2
Uncertain
0.88
D;D;D;.
M_CAP
Pathogenic
0.44
D
MetaRNN
Uncertain
0.44
T;T;T;T
MetaSVM
Uncertain
0.60
D
MutationAssessor
Uncertain
2.9
M;.;M;M
PhyloP100
-0.25
PrimateAI
Benign
0.40
T
PROVEAN
Uncertain
-2.4
N;.;N;N
REVEL
Pathogenic
0.69
Sift
Benign
0.14
T;.;T;T
Sift4G
Benign
0.42
T;.;T;T
Polyphen
0.36
B;.;P;P
Vest4
0.50
MutPred
0.49
Loss of stability (P = 0.0336);.;Loss of stability (P = 0.0336);Loss of stability (P = 0.0336);
MVP
0.96
ClinPred
0.32
T
GERP RS
0.51
Varity_R
0.22
gMVP
0.60
Mutation Taster
=92/8
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: rs3751664; hg19: chr16-1254369; API