16-1202416-C-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_021098.3(CACNA1H):c.1966C>A(p.Pro656Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000164 in 1,523,150 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. 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. P656L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.384

Publications

3 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 -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.15524757).

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1H	NM_021098.3 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 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.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 35	1	NM_021098.3	ENSP00000334198.7	O95180-1
CACNA1H	ENST00000569107.6 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 34	1		ENSP00000454990.2	H3BNT0
CACNA1H	ENST00000711493.1 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 34			ENSP00000518778.1
CACNA1H	ENST00000565831.7 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 34	1		ENSP00000455840.1	O95180-2
CACNA1H	ENST00000711450.1 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 35			ENSP00000518762.1
CACNA1H	ENST00000564231.6 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 35	1		ENSP00000457555.2	H3BUA8
CACNA1H	ENST00000638323.1 link	c.1927C>A	p.Pro643Thr	missense_variant	Exon 9 of 35	5		ENSP00000492267.1	A0A1W2PR14
CACNA1H	ENST00000562079.6 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 34	1		ENSP00000454581.2	H3BMW6
CACNA1H	ENST00000711438.1 link	c.1927C>A	p.Pro643Thr	missense_variant	Exon 9 of 34			ENSP00000518754.1
CACNA1H	ENST00000711482.1 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 36			ENSP00000518771.1
CACNA1H	ENST00000711485.1 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 35			ENSP00000518774.1
CACNA1H	ENST00000711455.1 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 36			ENSP00000518768.1
CACNA1H	ENST00000711483.1 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 35			ENSP00000518772.1
CACNA1H	ENST00000711456.1 link	c.1966C>A	p.Pro656Thr	missense_variant	Exon 9 of 34			ENSP00000518769.1
CACNA1H	ENST00000621827.2 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 37	6		ENSP00000518766.1
CACNA1H	ENST00000637236.3 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 34	5		ENSP00000492650.2	A0A1W2PS38
CACNA1H	ENST00000639478.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 35	5		ENSP00000491945.1	A0A1W2PQW2
CACNA1H	ENST00000711442.1 link	n.*1413C>A		non_coding_transcript_exon_variant	Exon 8 of 34			ENSP00000518758.1
CACNA1H	ENST00000711448.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 36			ENSP00000518760.1
CACNA1H	ENST00000711449.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 35			ENSP00000518761.1
CACNA1H	ENST00000711451.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 36			ENSP00000518763.1
CACNA1H	ENST00000711452.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 36			ENSP00000518764.1
CACNA1H	ENST00000711453.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 36			ENSP00000518765.1
CACNA1H	ENST00000711484.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 35			ENSP00000518773.1
CACNA1H	ENST00000711486.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 37			ENSP00000518775.1
CACNA1H	ENST00000711487.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 36			ENSP00000518776.1
CACNA1H	ENST00000711488.1 link	n.1966C>A		non_coding_transcript_exon_variant	Exon 9 of 35			ENSP00000518777.1
CACNA1H	ENST00000711442.1 link	n.*1413C>A		3_prime_UTR_variant	Exon 8 of 34			ENSP00000518758.1
CACNA1H	ENST00000640028.1 link	n.1385+581C>A		intron_variant	Intron 9 of 34	5		ENSP00000491488.1	A0A1W2PQ19

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152208

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:

0.000470

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000390

AC:

AN:

128090

AF XY:

0.0000437

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000445

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000371

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000146

AC:

AN:

1370824

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

672746

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31088

American (AMR)

AF:

0.0000297

AC:

AN:

33716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23722

East Asian (EAS)

AF:

0.00

AC:

AN:

35378

South Asian (SAS)

AF:

0.0000132

AC:

AN:

76026

European-Finnish (FIN)

AF:

0.000341

AC:

AN:

44052

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5556

European-Non Finnish (NFE)

AF:

9.39e-7

AC:

AN:

1064490

Other (OTH)

AF:

0.0000352

AC:

AN:

56796

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

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:

0.0000328

AC:

AN:

152326

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74478

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41580

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:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.000470

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000161

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000306

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.047

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Uncertain

0.46

T;.;.;.

Eigen

Benign

-0.82

Eigen_PC

Benign

-0.91

FATHMM_MKL

Benign

0.42

LIST_S2

Benign

0.78

T;T;T;.

M_CAP

Pathogenic

0.46

MetaRNN

Benign

0.16

T;T;T;T

MetaSVM

Uncertain

0.061

MutationAssessor

Uncertain

2.7

M;.;M;M

PhyloP100

0.38

PrimateAI

Benign

0.42

PROVEAN

Uncertain

-3.0

D;.;D;D

REVEL

Benign

0.21

Sift

Benign

0.069

T;.;T;T

Sift4G

Benign

0.14

T;.;T;T

Polyphen

0.27

B;.;B;B

Vest4

0.31

MutPred

0.26

Gain of phosphorylation at P656 (P = 0.0774);.;Gain of phosphorylation at P656 (P = 0.0774);Gain of phosphorylation at P656 (P = 0.0774);

MVP

0.82

ClinPred

0.25

GERP RS

-0.80

Varity_R

0.12

gMVP

0.33

Mutation Taster

=96/4

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

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over