16-1209337-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_StrongBP6_ModerateBP7BS1BS2

The NM_021098.3(CACNA1H):c.3669C>T(p.Ala1223Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00138 in 1,597,962 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0014 ( 2 hom. )

Consequence

CACNA1H
NM_021098.3 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.747

Publications

2 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 -15 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.48).

BP6

Variant 16-1209337-C-T is Benign according to our data. Variant chr16-1209337-C-T is described in ClinVar as Benign. ClinVar VariationId is 460094.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=0.747 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00109 (166/152324) while in subpopulation NFE AF = 0.00193 (131/68020). AF 95% confidence interval is 0.00166. There are 0 homozygotes in GnomAd4. There are 76 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 166 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1H	NM_021098.3 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 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.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 35	1	NM_021098.3	ENSP00000334198.7	O95180-1
CACNA1H	ENST00000569107.6 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 34	1		ENSP00000454990.2	H3BNT0
CACNA1H	ENST00000711493.1 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 34			ENSP00000518778.1
CACNA1H	ENST00000565831.7 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 34	1		ENSP00000455840.1	O95180-2
CACNA1H	ENST00000711450.1 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 35			ENSP00000518762.1
CACNA1H	ENST00000564231.6 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 35	1		ENSP00000457555.2	H3BUA8
CACNA1H	ENST00000638323.1 link	c.3630C>T	p.Ala1210Ala	synonymous_variant	Exon 17 of 35	5		ENSP00000492267.1	A0A1W2PR14
CACNA1H	ENST00000562079.6 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 34	1		ENSP00000454581.2	H3BMW6
CACNA1H	ENST00000711438.1 link	c.3630C>T	p.Ala1210Ala	synonymous_variant	Exon 17 of 34			ENSP00000518754.1
CACNA1H	ENST00000711482.1 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 36			ENSP00000518771.1
CACNA1H	ENST00000711485.1 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 35			ENSP00000518774.1
CACNA1H	ENST00000711455.1 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 36			ENSP00000518768.1
CACNA1H	ENST00000711483.1 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 35			ENSP00000518772.1
CACNA1H	ENST00000711456.1 link	c.3669C>T	p.Ala1223Ala	synonymous_variant	Exon 17 of 34			ENSP00000518769.1
CACNA1H	ENST00000621827.2 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 37	6		ENSP00000518766.1
CACNA1H	ENST00000637236.3 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 34	5		ENSP00000492650.2	A0A1W2PS38
CACNA1H	ENST00000639478.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 35	5		ENSP00000491945.1	A0A1W2PQW2
CACNA1H	ENST00000640028.1 link	n.*1582C>T		non_coding_transcript_exon_variant	Exon 17 of 35	5		ENSP00000491488.1	A0A1W2PQ19
CACNA1H	ENST00000711442.1 link	n.*3116C>T		non_coding_transcript_exon_variant	Exon 16 of 34			ENSP00000518758.1
CACNA1H	ENST00000711448.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 36			ENSP00000518760.1
CACNA1H	ENST00000711449.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 35			ENSP00000518761.1
CACNA1H	ENST00000711451.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 36			ENSP00000518763.1
CACNA1H	ENST00000711452.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 36			ENSP00000518764.1
CACNA1H	ENST00000711453.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 36			ENSP00000518765.1
CACNA1H	ENST00000711484.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 35			ENSP00000518773.1
CACNA1H	ENST00000711486.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 37			ENSP00000518775.1
CACNA1H	ENST00000711487.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 36			ENSP00000518776.1
CACNA1H	ENST00000711488.1 link	n.3669C>T		non_coding_transcript_exon_variant	Exon 17 of 35			ENSP00000518777.1
CACNA1H	ENST00000640028.1 link	n.*1582C>T		3_prime_UTR_variant	Exon 17 of 35	5		ENSP00000491488.1	A0A1W2PQ19
CACNA1H	ENST00000711442.1 link	n.*3116C>T		3_prime_UTR_variant	Exon 16 of 34			ENSP00000518758.1

Frequencies

GnomAD3 genomes

AF:

0.00109

AC:

166

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000289

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.000753

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00193

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.000955

AC:

219

AN:

229278

AF XY:

0.00103

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000351

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000852

Gnomad NFE exome

AF:

0.00176

Gnomad OTH exome

AF:

0.000344

GnomAD4 exome

AF:

0.00141

AC:

2035

AN:

1445638

Hom.:

Cov.:

AF XY:

0.00140

AC XY:

1006

AN XY:

719604

show subpopulations

African (AFR)

AF:

0.000299

AC:

AN:

33452

American (AMR)

AF:

0.000336

AC:

AN:

44676

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26086

East Asian (EAS)

AF:

0.00

AC:

AN:

39662

South Asian (SAS)

AF:

0.000267

AC:

AN:

86232

European-Finnish (FIN)

AF:

0.000761

AC:

AN:

38104

Middle Eastern (MID)

AF:

0.000520

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00171

AC:

1898

AN:

1111436

Other (OTH)

AF:

0.000946

AC:

AN:

60226

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

121

242

363

484

605

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

136

204

272

340

<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:

0.00109

AC:

166

AN:

152324

Hom.:

Cov.:

AF XY:

0.00102

AC XY:

AN XY:

74482

show subpopulations

African (AFR)

AF:

0.000289

AC:

AN:

41580

American (AMR)

AF:

0.000457

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.000621

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.000753

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00193

AC:

131

AN:

68020

Other (OTH)

AF:

0.00237

AC:

AN:

2110

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:

0.00140

Hom.:

Bravo

AF:

0.00102

EpiCase

AF:

0.00196

EpiControl

AF:

0.00208

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

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

Benign:1

Jan 13, 2025

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

BayesDel_noAF

Benign

-0.48

CADD

Benign

8.0

(source)

DANN

Benign

0.83

PhyloP100

0.75

Mutation Taster

=100/0

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over