16-1153750-G-A

Position:

chr16-1153750-G-A

Variant summary

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

The NM_021098.3(CACNA1H):c.13G>A(p.Ala5Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000111 in 1,212,022 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 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. A5S) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00054 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000050 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: -0.369

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=0.099538594).

BP6

Variant 16-1153750-G-A is Benign according to our data. Variant chr16-1153750-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 800247.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 = 0.000536 (81/151074) while in subpopulation AFR AF= 0.00184 (76/41342). AF 95% confidence interval is 0.00151. There are 0 homozygotes in gnomad4. There are 42 alleles in male gnomad4 subpopulation. Median coverage is 30. This position pass quality control queck.

BS2

High AC in GnomAd4 at 81 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNA1H	NM_021098.3 linkuse as main transcript	c.13G>A	p.Ala5Thr	missense_variant	2/35	ENST00000348261.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNA1H	ENST00000348261.11 linkuse as main transcript	c.13G>A	p.Ala5Thr	missense_variant	2/35	1	NM_021098.3	P4	O95180-1

Frequencies

GnomAD3 genomes

AF:

0.000537

AC:

AN:

150972

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00184

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000132

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:

0.0000148

Gnomad OTH

AF:

0.000965

GnomAD4 exome

AF:

0.0000500

AC:

AN:

1060948

Hom.:

Cov.:

AF XY:

0.0000319

AC XY:

AN XY:

501894

show subpopulations

Gnomad4 AFR exome

AF:

0.00230

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000110

Gnomad4 OTH exome

AF:

0.0000480

GnomAD4 genome

AF:

0.000536

AC:

AN:

151074

Hom.:

Cov.:

AF XY:

0.000569

AC XY:

AN XY:

73840

show subpopulations

Gnomad4 AFR

AF:

0.00184

Gnomad4 AMR

AF:

0.000132

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000148

Gnomad4 OTH

AF:

0.000955

Bravo

AF:

0.000438

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 10, 2021

The c.13G>A (p.A5T) alteration is located in exon 2 (coding exon 1) of the CACNA1H gene. This alteration results from a G to A substitution at nucleotide position 13, causing the alanine (A) at amino acid position 5 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

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

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 23, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.075

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.40

CADD

Benign

9.3

DANN

Benign

0.85

DEOGEN2

Benign

0.097

T;.;.;.

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.46

T;T;T;.

M_CAP

Pathogenic

0.92

MetaRNN

Benign

0.10

T;T;T;T

MetaSVM

Uncertain

-0.28

MutationAssessor

Benign

0.0

N;.;N;N

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Pathogenic

0.86

PROVEAN

Benign

-0.10

N;.;N;N

REVEL

Benign

0.29

Sift

Benign

0.73

T;.;T;T

Sift4G

Benign

0.62

T;.;T;T

Polyphen

0.0040

B;.;B;B

Vest4

0.033

MutPred

0.12

Loss of helix (P = 0.0304);Loss of helix (P = 0.0304);Loss of helix (P = 0.0304);Loss of helix (P = 0.0304);

MVP

0.34

ClinPred

0.017

GERP RS

0.79

Varity_R

0.038

gMVP

0.27

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