NM_021098.3:c.1895C>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_021098.3(CACNA1H):c.1895C>A(p.Pro632His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000142 in 1,571,796 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 0.000046 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.910

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: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.25097466).

BP6

Variant 16-1202345-C-A is Benign according to our data. Variant chr16-1202345-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 569382.

BS2

High AC in GnomAd4 at 7 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.1895C>A	p.Pro632His	missense	Exon 9 of 35	NP_066921.2
	CACNA1H	NM_001005407.2		c.1895C>A	p.Pro632His	missense	Exon 9 of 34	NP_001005407.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CACNA1H	ENST00000348261.11	TSL:1 MANE Select	c.1895C>A	p.Pro632His	missense	Exon 9 of 35	ENSP00000334198.7
CACNA1H	ENST00000569107.6	TSL:1	c.1895C>A	p.Pro632His	missense	Exon 9 of 34	ENSP00000454990.2
CACNA1H	ENST00000711493.1		c.1895C>A	p.Pro632His	missense	Exon 9 of 34	ENSP00000518778.1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152216

Hom.:

Cov.:

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000457

AC:

AN:

174978

AF XY:

0.0000418

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000366

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000949

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000152

AC:

216

AN:

1419580

Hom.:

Cov.:

AF XY:

0.000144

AC XY:

101

AN XY:

702514

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32492

American (AMR)

AF:

0.0000258

AC:

AN:

38764

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25364

East Asian (EAS)

AF:

0.00

AC:

AN:

37054

South Asian (SAS)

AF:

0.00

AC:

AN:

80534

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47910

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5722

European-Non Finnish (NFE)

AF:

0.000177

AC:

193

AN:

1092882

Other (OTH)

AF:

0.000374

AC:

AN:

58858

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

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:

0.0000460

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74364

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41466

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

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:

0.000103

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.454

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:

0.000112

Hom.:

Bravo

AF:

0.0000869

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000260

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Sep 14, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1895C>A (p.P632H) alteration is located in exon 9 (coding exon 8) of the CACNA1H gene. This alteration results from a C to A substitution at nucleotide position 1895, causing the proline (P) at amino acid position 632 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.

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

Benign:1

Jan 21, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Uncertain

0.098

BayesDel_noAF

Benign

-0.10

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.28

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.64

FATHMM_MKL

Benign

0.29

LIST_S2

Benign

0.63

M_CAP

Pathogenic

0.43

MetaRNN

Benign

0.25

MetaSVM

Uncertain

0.20

MutationAssessor

Uncertain

2.4

PhyloP100

0.91

PrimateAI

Benign

0.42

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.27

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0090

Polyphen

0.88

Vest4

0.36

MVP

0.74

ClinPred

0.25

GERP RS

1.1

Varity_R

0.22

gMVP

0.40

Mutation Taster

=95/5

polymorphism

(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

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over