rs774455553

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4BP6BS2

The NM_021098.3(CACNA1H):c.4448G>A(p.Arg1483His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000354 in 1,610,198 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 2.91

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.26861805).

BP6

Variant 16-1211578-G-A is Benign according to our data. Variant chr16-1211578-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 529564.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.

BS2

High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1H	NM_021098.3 link	c.4448G>A	p.Arg1483His	missense_variant	Exon 23 of 35	ENST00000348261.11	NP_066921.2	O95180-1B3KQH9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CACNA1H	ENST00000348261.11 link	c.4448G>A	p.Arg1483His	missense_variant	Exon 23 of 35	1	NM_021098.3	ENSP00000334198.7	O95180-1
CACNA1H	ENST00000565831.6 link	c.4448G>A	p.Arg1483His	missense_variant	Exon 22 of 33	1		ENSP00000455840.1	O95180-2
CACNA1H	ENST00000638323.1 link	c.4409G>A	p.Arg1470His	missense_variant	Exon 23 of 35	5		ENSP00000492267.1	A0A1W2PR14
CACNA1H	ENST00000569107.5 link	c.671G>A	p.Arg224His	missense_variant	Exon 6 of 17	1		ENSP00000454990.2	H3BNT0
CACNA1H	ENST00000564231.5 link	c.671G>A	p.Arg224His	missense_variant	Exon 6 of 18	1		ENSP00000457555.2	H3BUA8
CACNA1H	ENST00000562079.5 link	c.671G>A	p.Arg224His	missense_variant	Exon 6 of 17	1		ENSP00000454581.2	H3BMW6
CACNA1H	ENST00000639478.1 link	n.4448G>A		non_coding_transcript_exon_variant	Exon 23 of 35	5		ENSP00000491945.1	A0A1W2PQW2
CACNA1H	ENST00000640028.1 link	n.*2361G>A		non_coding_transcript_exon_variant	Exon 23 of 35	5		ENSP00000491488.1	A0A1W2PQ19
CACNA1H	ENST00000640028.1 link	n.*2361G>A		3_prime_UTR_variant	Exon 23 of 35	5		ENSP00000491488.1	A0A1W2PQ19

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000663

AC:

AN:

241224

Hom.:

AF XY:

0.0000683

AC XY:

AN XY:

131862

show subpopulations

Gnomad AFR exome

AF:

0.0000694

Gnomad AMR exome

AF:

0.000177

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000568

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000645

Gnomad OTH exome

AF:

0.000170

GnomAD4 exome

AF:

0.0000350

AC:

AN:

1457958

Hom.:

Cov.:

AF XY:

0.0000331

AC XY:

AN XY:

725142

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000180

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000505

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000324

Gnomad4 OTH exome

AF:

0.0000830

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000675

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000249

AC:

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

Dec 27, 2023

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

CACNA1H-related disorder

Uncertain:1

Mar 06, 2024

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The CACNA1H c.4448G>A variant is predicted to result in the amino acid substitution p.Arg1483His. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.017% of alleles in individuals of Latino descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV

Benign:1

Nov 18, 2024

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

0.11

BayesDel_addAF

Benign

-0.0056

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

DANN

Benign

0.90

DEOGEN2

Benign

0.37

T;.;.;.

Eigen

Benign

-0.14

Eigen_PC

Benign

-0.028

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.85

D;D;D;.

M_CAP

Uncertain

0.19

MetaRNN

Benign

0.27

T;T;T;T

MetaSVM

Uncertain

0.55

MutationAssessor

Benign

0.45

N;.;N;N

PrimateAI

Uncertain

0.68

PROVEAN

Benign

2.4

N;.;N;N

REVEL

Uncertain

0.52

Sift

Benign

1.0

T;.;T;T

Sift4G

Benign

1.0

T;.;T;T

Polyphen

0.65

P;.;B;B

Vest4

0.66

MutPred

0.63

Loss of MoRF binding (P = 0.0343);.;Loss of MoRF binding (P = 0.0343);Loss of MoRF binding (P = 0.0343);

MVP

0.91

ClinPred

0.12

GERP RS

4.0

Varity_R

0.22

gMVP

0.72

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over