16-1220497-C-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_021098.3(CACNA1H):c.6565C>A(p.Pro2189Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000143 in 1,542,930 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. P2189S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000093 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.36

Publications

0 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)

CACNA1H links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2

High AC in GnomAd4 at 9 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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CACNA1H	NM_021098.3	MANE Select	c.6565C>A	p.Pro2189Thr	missense	Exon 35 of 35	NP_066921.2
	CACNA1H	NM_001005407.2		c.6547C>A	p.Pro2183Thr	missense	Exon 34 of 34	NP_001005407.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CACNA1H	ENST00000348261.11	TSL:1 MANE Select	c.6565C>A	p.Pro2189Thr	missense	Exon 35 of 35	ENSP00000334198.7
CACNA1H	ENST00000569107.6	TSL:1	c.6580C>A	p.Pro2194Thr	missense	Exon 34 of 34	ENSP00000454990.2
CACNA1H	ENST00000711493.1		c.6550C>A	p.Pro2184Thr	missense	Exon 34 of 34	ENSP00000518778.1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

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

GnomAD2 exomes

AF:

0.0000412

AC:

AN:

169952

AF XY:

0.0000430

show subpopulations

Gnomad AFR exome

AF:

0.000312

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000667

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000126

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000935

AC:

AN:

1390882

Hom.:

Cov.:

AF XY:

0.0000116

AC XY:

AN XY:

687628

show subpopulations

African (AFR)

AF:

0.000197

AC:

AN:

30444

American (AMR)

AF:

0.00

AC:

AN:

30136

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20952

East Asian (EAS)

AF:

0.0000255

AC:

AN:

39186

South Asian (SAS)

AF:

0.0000136

AC:

AN:

73300

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48806

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5388

European-Non Finnish (NFE)

AF:

0.00000369

AC:

AN:

1085432

Other (OTH)

AF:

0.0000175

AC:

AN:

57238

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000592

AC:

AN:

152048

Hom.:

Cov.:

AF XY:

0.0000808

AC XY:

AN XY:

74252

show subpopulations

African (AFR)

AF:

0.000193

AC:

AN:

41406

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5162

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67960

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00

Hom.:

Bravo

AF:

0.0000529

ExAC

AF:

0.0000598

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.88

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.21

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.66

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Uncertain

0.83

LIST_S2

Uncertain

0.91

M_CAP

Pathogenic

0.44

MetaRNN

Uncertain

0.49

MetaSVM

Benign

-0.81

MutationAssessor

Pathogenic

3.0

PhyloP100

5.4

PrimateAI

Pathogenic

0.89

PROVEAN

Pathogenic

-6.0

REVEL

Benign

0.23

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.011

Polyphen

1.0

Vest4

0.32

MVP

0.69

ClinPred

0.93

GERP RS

4.7

Varity_R

0.88

gMVP

0.33

Mutation Taster

=36/64

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over