Variant 16-1201821-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_021098.3(CACNA1H):c.1371C>T(p.Tyr457=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000567 in 1,581,512 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00054 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00057 ( 6 hom. )

Consequence

CACNA1H
NM_021098.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.0760

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.41).

BP6

Variant 16-1201821-C-T is Benign according to our data. Variant chr16-1201821-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 529671.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.076 with no splicing effect.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000545 (83/152356) while in subpopulation SAS AF= 0.00104 (5/4830). AF 95% confidence interval is 0.000469. There are 0 homozygotes in gnomad4. There are 41 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.

BS2

High AC in GnomAd4 at 83 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNA1H	NM_021098.3 linkuse as main transcript	c.1371C>T	p.Tyr457=	synonymous_variant	9/35	ENST00000348261.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNA1H	ENST00000348261.11 linkuse as main transcript	c.1371C>T	p.Tyr457=	synonymous_variant	9/35	1	NM_021098.3	P4	O95180-1

Frequencies

GnomAD3 genomes

AF:

0.000545

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00950

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00103

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000617

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000867

AC:

169

AN:

195028

Hom.:

AF XY:

0.000902

AC XY:

AN XY:

105266

show subpopulations

Gnomad AFR exome

AF:

0.0000926

Gnomad AMR exome

AF:

0.0000354

Gnomad ASJ exome

AF:

0.0115

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000475

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000545

Gnomad OTH exome

AF:

0.000972

GnomAD4 exome

AF:

0.000570

AC:

814

AN:

1429156

Hom.:

Cov.:

AF XY:

0.000599

AC XY:

424

AN XY:

707872

show subpopulations

Gnomad4 AFR exome

AF:

0.0000610

Gnomad4 AMR exome

AF:

0.0000505

Gnomad4 ASJ exome

AF:

0.0126

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000538

Gnomad4 FIN exome

AF:

0.0000201

Gnomad4 NFE exome

AF:

0.000342

Gnomad4 OTH exome

AF:

0.00103

GnomAD4 genome

AF:

0.000545

AC:

AN:

152356

Hom.:

Cov.:

AF XY:

0.000550

AC XY:

AN XY:

74502

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00950

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000617

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.00137

Hom.:

Bravo

AF:

0.000548

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

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

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Sep 27, 2021

- -

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

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 17, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.41

CADD

Benign

6.7

DANN

Benign

0.93

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over