rs374297889

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PP3_ModerateBP6BS2

The NM_021098.3(CACNA1H):​c.4426G>A​(p.Ala1476Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000422 in 1,611,752 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

3
12
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 7.93
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.866
BP6
Variant 16-1211556-G-A is Benign according to our data. Variant chr16-1211556-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 585645.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Benign=1}.
BS2
High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CACNA1HNM_021098.3 linkuse as main transcriptc.4426G>A p.Ala1476Thr missense_variant 23/35 ENST00000348261.11 NP_066921.2 O95180-1B3KQH9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CACNA1HENST00000348261.11 linkuse as main transcriptc.4426G>A p.Ala1476Thr missense_variant 23/351 NM_021098.3 ENSP00000334198.7 O95180-1
CACNA1HENST00000565831.6 linkuse as main transcriptc.4426G>A p.Ala1476Thr missense_variant 22/331 ENSP00000455840.1 O95180-2
CACNA1HENST00000638323.1 linkuse as main transcriptc.4387G>A p.Ala1463Thr missense_variant 23/355 ENSP00000492267.1 A0A1W2PR14
CACNA1HENST00000569107.5 linkuse as main transcriptc.649G>A p.Ala217Thr missense_variant 6/171 ENSP00000454990.2 H3BNT0
CACNA1HENST00000564231.5 linkuse as main transcriptc.649G>A p.Ala217Thr missense_variant 6/181 ENSP00000457555.2 H3BUA8
CACNA1HENST00000562079.5 linkuse as main transcriptc.649G>A p.Ala217Thr missense_variant 6/171 ENSP00000454581.2 H3BMW6
CACNA1HENST00000639478.1 linkuse as main transcriptn.4426G>A non_coding_transcript_exon_variant 23/355 ENSP00000491945.1 A0A1W2PQW2
CACNA1HENST00000640028.1 linkuse as main transcriptn.*2339G>A non_coding_transcript_exon_variant 23/355 ENSP00000491488.1 A0A1W2PQ19
CACNA1HENST00000640028.1 linkuse as main transcriptn.*2339G>A 3_prime_UTR_variant 23/355 ENSP00000491488.1 A0A1W2PQ19

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152218
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000103
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000367
AC:
9
AN:
245158
Hom.:
0
AF XY:
0.0000448
AC XY:
6
AN XY:
133828
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000543
Gnomad OTH exome
AF:
0.000336
GnomAD4 exome
AF:
0.0000397
AC:
58
AN:
1459534
Hom.:
0
Cov.:
35
AF XY:
0.0000358
AC XY:
26
AN XY:
726008
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000486
Gnomad4 OTH exome
AF:
0.0000332
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152218
Hom.:
0
Cov.:
33
AF XY:
0.0000941
AC XY:
7
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000113
Hom.:
0
Bravo
AF:
0.0000416
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000241
AC:
2
ExAC
AF:
0.0000332
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000594

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Epilepsy, childhood absence, susceptibility to, 6;C4310756:Hyperaldosteronism, familial, type IV Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsApr 22, 2024- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAthena DiagnosticsJan 24, 2018- -
Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 07, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Uncertain
0.085
D
BayesDel_noAF
Uncertain
0.070
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.71
D;.;.;.
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.90
D;D;D;.
M_CAP
Uncertain
0.18
D
MetaRNN
Pathogenic
0.87
D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Benign
1.7
L;.;L;L
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-3.8
D;.;D;D
REVEL
Pathogenic
0.76
Sift
Benign
0.053
T;.;T;T
Sift4G
Uncertain
0.041
D;.;D;D
Polyphen
1.0
D;.;D;D
Vest4
0.55
MVP
0.87
ClinPred
0.84
D
GERP RS
4.0
Varity_R
0.38
gMVP
0.79

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs374297889; hg19: chr16-1261556; COSMIC: COSV62002540; COSMIC: COSV62002540; API