16-1204222-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_021098.3(CACNA1H):c.2215C>T(p.Arg739Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000199 in 1,611,700 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R739L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000066 ( 1 hom., cov: 33)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: -0.117

Publications

1 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 -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.062252194).

BS2

High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1H	NM_021098.3 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 35	ENST00000348261.11	NP_066921.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
CACNA1H	ENST00000348261.11 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 35	1	NM_021098.3	ENSP00000334198.7
CACNA1H	ENST00000569107.6 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 34	1		ENSP00000454990.2
CACNA1H	ENST00000711493.1 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 34			ENSP00000518778.1
CACNA1H	ENST00000565831.7 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 34	1		ENSP00000455840.1
CACNA1H	ENST00000711450.1 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 35			ENSP00000518762.1
CACNA1H	ENST00000564231.6 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 35	1		ENSP00000457555.2
CACNA1H	ENST00000638323.1 link	c.2176C>T	p.Arg726Cys	missense_variant	Exon 10 of 35	5		ENSP00000492267.1
CACNA1H	ENST00000562079.6 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 34	1		ENSP00000454581.2
CACNA1H	ENST00000711438.1 link	c.2176C>T	p.Arg726Cys	missense_variant	Exon 10 of 34			ENSP00000518754.1
CACNA1H	ENST00000711482.1 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 36			ENSP00000518771.1
CACNA1H	ENST00000711485.1 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 35			ENSP00000518774.1
CACNA1H	ENST00000711455.1 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 36			ENSP00000518768.1
CACNA1H	ENST00000711483.1 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 35			ENSP00000518772.1
CACNA1H	ENST00000711456.1 link	c.2215C>T	p.Arg739Cys	missense_variant	Exon 10 of 34			ENSP00000518769.1
CACNA1H	ENST00000621827.2 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 37	6		ENSP00000518766.1
CACNA1H	ENST00000637236.3 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 34	5		ENSP00000492650.2
CACNA1H	ENST00000639478.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 35	5		ENSP00000491945.1
CACNA1H	ENST00000640028.1 link	n.*128C>T		non_coding_transcript_exon_variant	Exon 10 of 35	5		ENSP00000491488.1
CACNA1H	ENST00000711442.1 link	n.*1662C>T		non_coding_transcript_exon_variant	Exon 9 of 34			ENSP00000518758.1
CACNA1H	ENST00000711448.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 36			ENSP00000518760.1
CACNA1H	ENST00000711449.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 35			ENSP00000518761.1
CACNA1H	ENST00000711451.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 36			ENSP00000518763.1
CACNA1H	ENST00000711452.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 36			ENSP00000518764.1
CACNA1H	ENST00000711453.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 36			ENSP00000518765.1
CACNA1H	ENST00000711484.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 35			ENSP00000518773.1
CACNA1H	ENST00000711486.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 37			ENSP00000518775.1
CACNA1H	ENST00000711487.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 36			ENSP00000518776.1
CACNA1H	ENST00000711488.1 link	n.2215C>T		non_coding_transcript_exon_variant	Exon 10 of 35			ENSP00000518777.1
CACNA1H	ENST00000640028.1 link	n.*128C>T		3_prime_UTR_variant	Exon 10 of 35	5		ENSP00000491488.1
CACNA1H	ENST00000711442.1 link	n.*1662C>T		3_prime_UTR_variant	Exon 9 of 34			ENSP00000518758.1

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000165

AC:

AN:

242588

AF XY:

0.0000151

show subpopulations

Gnomad AFR exome

AF:

0.0000674

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000276

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1459376

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

725952

show subpopulations

African (AFR)

AF:

0.0000897

AC:

AN:

33462

American (AMR)

AF:

0.00

AC:

AN:

44602

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26090

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39678

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86120

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51990

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.0000144

AC:

AN:

1111390

Other (OTH)

AF:

0.00

AC:

AN:

60282

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

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:

0.0000656

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.0000940

AC XY:

AN XY:

74490

show subpopulations

African (AFR)

AF:

0.000192

AC:

AN:

41578

American (AMR)

AF:

0.00

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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:

0.0000388

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.00000831

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000594

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Jun 01, 2016

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 12, 2019

Athena Diagnostics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Epilepsy, childhood absence, susceptibility to, 6;C4310756:Hyperaldosteronism, familial, type IV

Uncertain:1

Feb 15, 2022

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Inborn genetic diseases

Uncertain:1

Jan 26, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2215C>T (p.R739C) alteration is located in exon 10 (coding exon 9) of the CACNA1H gene. This alteration results from a C to T substitution at nucleotide position 2215, causing the arginine (R) at amino acid position 739 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

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

Benign:1

Mar 21, 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

0.089

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.31

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.19

T;.;.;.

Eigen

Benign

-0.93

Eigen_PC

Benign

-0.95

FATHMM_MKL

Benign

0.073

LIST_S2

Benign

0.63

T;T;T;.

M_CAP

Uncertain

0.14

MetaRNN

Benign

0.062

T;T;T;T

MetaSVM

Uncertain

-0.064

MutationAssessor

Benign

1.1

L;.;L;L

PhyloP100

-0.12

PrimateAI

Benign

0.32

PROVEAN

Benign

-1.5

N;.;N;N

REVEL

Benign

0.18

Sift

Benign

0.21

T;.;T;T

Sift4G

Benign

0.073

T;.;T;T

Polyphen

0.0030

B;.;B;B

Vest4

0.12

MVP

0.47

ClinPred

0.081

GERP RS

2.2

Varity_R

0.084

gMVP

0.32

Mutation Taster

=95/5

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over