NM_021098.3:c.827G>A

Variant names:

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBS1BS2

The NM_021098.3(CACNA1H):c.827G>A(p.Arg276Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00056 in 1,601,618 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 Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R276W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0032 ( 3 hom., cov: 32)

Exomes 𝑓: 0.00029 ( 3 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.75

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 -10 ACMG points.

BP6

Variant 16-1200279-G-A is Benign according to our data. Variant chr16-1200279-G-A is described in ClinVar as [Benign]. Clinvar id is 460192.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr16-1200279-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00317 (482/152274) while in subpopulation AFR AF= 0.0112 (464/41546). AF 95% confidence interval is 0.0103. There are 3 homozygotes in gnomad4. There are 248 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 482 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1H	NM_021098.3 link	c.827G>A	p.Arg276Gln	missense_variant	Exon 7 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.827G>A	p.Arg276Gln	missense_variant	Exon 7 of 35	1	NM_021098.3	ENSP00000334198.7	O95180-1
CACNA1H	ENST00000565831.6 link	c.827G>A	p.Arg276Gln	missense_variant	Exon 6 of 33	1		ENSP00000455840.1	O95180-2
CACNA1H	ENST00000638323.1 link	c.788G>A	p.Arg263Gln	missense_variant	Exon 7 of 35	5		ENSP00000492267.1	A0A1W2PR14
CACNA1H	ENST00000639478.1 link	n.827G>A		non_coding_transcript_exon_variant	Exon 7 of 35	5		ENSP00000491945.1	A0A1W2PQW2
CACNA1H	ENST00000640028.1 link	n.827G>A		non_coding_transcript_exon_variant	Exon 7 of 35	5		ENSP00000491488.1	A0A1W2PQ19

Frequencies

GnomAD3 genomes

AF:

0.00317

AC:

482

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0112

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000981

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:

0.000957

GnomAD3 exomes

AF:

0.000679

AC:

159

AN:

234252

Hom.:

AF XY:

0.000594

AC XY:

AN XY:

127998

show subpopulations

Gnomad AFR exome

AF:

0.0107

Gnomad AMR exome

AF:

0.000332

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000950

Gnomad OTH exome

AF:

0.000348

GnomAD4 exome

AF:

0.000286

AC:

415

AN:

1449344

Hom.:

Cov.:

AF XY:

0.000243

AC XY:

175

AN XY:

719362

show subpopulations

Gnomad4 AFR exome

AF:

0.0106

Gnomad4 AMR exome

AF:

0.000575

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000254

Gnomad4 SAS exome

AF:

0.0000118

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000271

Gnomad4 OTH exome

AF:

0.000551

GnomAD4 genome

AF:

0.00317

AC:

482

AN:

152274

Hom.:

Cov.:

AF XY:

0.00333

AC XY:

248

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.0112

Gnomad4 AMR

AF:

0.000980

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:

0.000947

Alfa

AF:

0.000494

Hom.:

Bravo

AF:

0.00351

ESP6500AA

AF:

0.0103

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000938

AC:

113

Asia WGS

AF:

0.00144

AC:

AN:

3478

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

Feb 02, 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

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.090

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.35

T;.;.;.

Eigen

Benign

-0.042

Eigen_PC

Benign

0.0025

FATHMM_MKL

Benign

0.22

LIST_S2

Benign

0.81

T;T;T;.

MetaRNN

Benign

0.0092

T;T;T;T

MetaSVM

Uncertain

0.15

MutationAssessor

Benign

0.69

N;.;N;N

PrimateAI

Benign

0.44

PROVEAN

Benign

0.0

N;.;N;N

REVEL

Uncertain

0.33

Sift

Benign

0.083

T;.;T;T

Sift4G

Benign

0.55

T;.;T;T

Polyphen

0.96

D;.;P;P

Vest4

0.28

MVP

0.80

ClinPred

0.0082

GERP RS

3.4

Varity_R

0.054

gMVP

0.80

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.35

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.35

Position offset: 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