rs201651793

chr16-1200378-G-A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_021098.3(CACNA1H):c.926G>A(p.Arg309His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000425 in 1,601,730 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R309C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 1.68

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 -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10715234).

BP6

Variant 16-1200378-G-A is Benign according to our data. Variant chr16-1200378-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 460194.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000204 (31/152324) while in subpopulation AFR AF= 0.000722 (30/41574). AF 95% confidence interval is 0.000518. There are 0 homozygotes in gnomad4. There are 17 alleles in male gnomad4 subpopulation. This position pass quality control queck.

BS2

High AC in GnomAd at 31 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNA1H	NM_021098.3 linkuse as main transcript	c.926G>A	p.Arg309His	missense_variant	7/35	ENST00000348261.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNA1H	ENST00000348261.11 linkuse as main transcript	c.926G>A	p.Arg309His	missense_variant	7/35	1	NM_021098.3	P4	O95180-1

Frequencies

GnomAD3 genomes

AF:

0.000204

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000483

AC:

AN:

227840

Hom.:

AF XY:

0.0000480

AC XY:

AN XY:

125080

show subpopulations

Gnomad AFR exome

AF:

0.000603

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000599

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000352

GnomAD4 exome

AF:

0.0000255

AC:

AN:

1449406

Hom.:

Cov.:

AF XY:

0.0000194

AC XY:

AN XY:

720218

show subpopulations

Gnomad4 AFR exome

AF:

0.000844

Gnomad4 AMR exome

AF:

0.0000231

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000255

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000271

Gnomad4 OTH exome

AF:

0.0000500

GnomAD4 genome

AF:

0.000204

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.000722

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000767

Hom.:

Bravo

AF:

0.000215

ESP6500AA

AF:

0.000990

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000834

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Jun 26, 2018

- -

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

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 08, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.098

BayesDel_noAF

Uncertain

0.020

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Uncertain

0.55

D;.;.;.

Eigen

Uncertain

0.37

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Benign

0.52

LIST_S2

Uncertain

0.88

D;D;D;.

M_CAP

Pathogenic

0.32

MetaRNN

Benign

0.11

T;T;T;T

MetaSVM

Uncertain

0.21

MutationAssessor

Pathogenic

3.1

M;.;M;M

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-1.8

N;.;N;N

REVEL

Uncertain

0.39

Sift

Benign

0.039

D;.;D;D

Sift4G

Uncertain

0.053

T;.;T;T

Polyphen

0.99

D;.;D;D

Vest4

0.39

MVP

0.92

ClinPred

0.28

GERP RS

4.4

Varity_R

0.061

gMVP

0.79

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