chr16-1220192-G-A

Position:

chr16-1220192-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_021098.3(CACNA1H):c.6260G>A(p.Gly2087Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000909 in 1,539,798 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 35)

Exomes 𝑓: 0.0000094 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.576

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:

CACNA1H (HGNC:):

CACNA1H links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.12334508).

BS2

High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CACNA1H	NM_021098.3 linkuse as main transcript	c.6260G>A	p.Gly2087Asp	missense_variant	35/35	ENST00000348261.11	NP_066921.2	O95180-1B3KQH9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CACNA1H	ENST00000348261.11 linkuse as main transcript	c.6260G>A	p.Gly2087Asp	missense_variant	35/35	1	NM_021098.3	ENSP00000334198.7	O95180-1
CACNA1H	ENST00000565831.6 linkuse as main transcript	c.6242G>A	p.Gly2081Asp	missense_variant	33/33	1		ENSP00000455840.1	O95180-2
CACNA1H	ENST00000638323.1 linkuse as main transcript	c.6221G>A	p.Gly2074Asp	missense_variant	35/35	5		ENSP00000492267.1	A0A1W2PR14
CACNA1H	ENST00000569107.5 linkuse as main transcript	c.2498G>A	p.Gly833Asp	missense_variant	17/17	1		ENSP00000454990.2	H3BNT0
CACNA1H	ENST00000564231.5 linkuse as main transcript	c.2450G>A	p.Gly817Asp	missense_variant	18/18	1		ENSP00000457555.2	H3BUA8
CACNA1H	ENST00000562079.5 linkuse as main transcript	c.2432G>A	p.Gly811Asp	missense_variant	17/17	1		ENSP00000454581.2	H3BMW6
CACNA1H	ENST00000639478.1 linkuse as main transcript	n.*1308G>A		non_coding_transcript_exon_variant	35/35	5		ENSP00000491945.1	A0A1W2PQW2
CACNA1H	ENST00000640028.1 linkuse as main transcript	n.*4078G>A		non_coding_transcript_exon_variant	35/35	5		ENSP00000491488.1	A0A1W2PQ19
CACNA1H	ENST00000639478.1 linkuse as main transcript	n.*1308G>A		3_prime_UTR_variant	35/35	5		ENSP00000491945.1	A0A1W2PQW2
CACNA1H	ENST00000640028.1 linkuse as main transcript	n.*4078G>A		3_prime_UTR_variant	35/35	5		ENSP00000491488.1	A0A1W2PQ19

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152180

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000937

AC:

AN:

1387618

Hom.:

Cov.:

AF XY:

0.00000583

AC XY:

AN XY:

686132

show subpopulations

Gnomad4 AFR exome

AF:

0.0000349

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:

0.0000102

Gnomad4 OTH exome

AF:

0.0000175

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152180

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74324

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

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

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 03, 2022

This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 2087 of the CACNA1H protein (p.Gly2087Asp). This variant is not present in population databases (gnomAD no frequency). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CACNA1H protein function. This variant has not been reported in the literature in individuals affected with CACNA1H-related conditions. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.46

CADD

Benign

DANN

Benign

0.85

DEOGEN2

Benign

0.15

T;.;.;.

Eigen

Benign

-0.77

Eigen_PC

Benign

-0.80

FATHMM_MKL

Benign

0.093

LIST_S2

Benign

0.71

T;T;T;.

M_CAP

Uncertain

0.18

MetaRNN

Benign

0.12

T;T;T;T

MetaSVM

Benign

-0.96

MutationAssessor

Uncertain

2.2

M;.;.;.

PrimateAI

Benign

0.47

PROVEAN

Benign

-0.68

N;.;N;N

REVEL

Benign

0.082

Sift

Benign

0.066

T;.;T;T

Sift4G

Benign

0.42

T;.;T;T

Polyphen

0.0010

B;.;B;B

Vest4

0.12

MutPred

0.13

Loss of catalytic residue at P2083 (P = 0.0761);.;.;.;

MVP

0.53

ClinPred

0.12

GERP RS

3.3

Varity_R

0.079

gMVP

0.17

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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