rs748980218

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_021098.3(CACNA1H):c.6440C>A(p.Pro2147Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000073 in 1,370,052 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P2147L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.3e-7 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.44

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

hyperaldosteronism, familial, type IV
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
childhood absence epilepsy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
epilepsy, childhood absence, susceptibility to, 6
Inheritance: AD Classification: LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)

CACNA1H links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1H	NM_021098.3 link	c.6440C>A	p.Pro2147Gln	missense_variant	Exon 35 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.6440C>A	p.Pro2147Gln	missense_variant	Exon 35 of 35	1	NM_021098.3	ENSP00000334198.7	O95180-1
CACNA1H	ENST00000569107.6 link	c.6455C>A	p.Pro2152Gln	missense_variant	Exon 34 of 34	1		ENSP00000454990.2	H3BNT0
CACNA1H	ENST00000711493.1 link	c.6425C>A	p.Pro2142Gln	missense_variant	Exon 34 of 34			ENSP00000518778.1
CACNA1H	ENST00000565831.7 link	c.6422C>A	p.Pro2141Gln	missense_variant	Exon 34 of 34	1		ENSP00000455840.1	O95180-2
CACNA1H	ENST00000711450.1 link	c.6422C>A	p.Pro2141Gln	missense_variant	Exon 35 of 35			ENSP00000518762.1
CACNA1H	ENST00000564231.6 link	c.6407C>A	p.Pro2136Gln	missense_variant	Exon 35 of 35	1		ENSP00000457555.2	H3BUA8
CACNA1H	ENST00000638323.1 link	c.6401C>A	p.Pro2134Gln	missense_variant	Exon 35 of 35	5		ENSP00000492267.1	A0A1W2PR14
CACNA1H	ENST00000562079.6 link	c.6389C>A	p.Pro2130Gln	missense_variant	Exon 34 of 34	1		ENSP00000454581.2	H3BMW6
CACNA1H	ENST00000711438.1 link	c.6383C>A	p.Pro2128Gln	missense_variant	Exon 34 of 34			ENSP00000518754.1
CACNA1H	ENST00000711482.1 link	c.6333C>A	p.Ala2111Ala	synonymous_variant	Exon 36 of 36			ENSP00000518771.1
CACNA1H	ENST00000711485.1 link	c.6282C>A	p.Ala2094Ala	synonymous_variant	Exon 35 of 35			ENSP00000518774.1
CACNA1H	ENST00000711455.1 link	c.6255C>A	p.Ala2085Ala	synonymous_variant	Exon 36 of 36			ENSP00000518768.1
CACNA1H	ENST00000637236.3 link	n.*2359C>A		non_coding_transcript_exon_variant	Exon 34 of 34	5		ENSP00000492650.2	A0A1W2PS38
CACNA1H	ENST00000639478.1 link	n.*1488C>A		non_coding_transcript_exon_variant	Exon 35 of 35	5		ENSP00000491945.1	A0A1W2PQW2
CACNA1H	ENST00000640028.1 link	n.*4258C>A		non_coding_transcript_exon_variant	Exon 35 of 35	5		ENSP00000491488.1	A0A1W2PQ19
CACNA1H	ENST00000711442.1 link	n.*5884C>A		non_coding_transcript_exon_variant	Exon 33 of 34			ENSP00000518758.1
CACNA1H	ENST00000711448.1 link	n.*1381C>A		non_coding_transcript_exon_variant	Exon 36 of 36			ENSP00000518760.1
CACNA1H	ENST00000711449.1 link	n.*1299C>A		non_coding_transcript_exon_variant	Exon 35 of 35			ENSP00000518761.1
CACNA1H	ENST00000711451.1 link	n.*2019C>A		non_coding_transcript_exon_variant	Exon 36 of 36			ENSP00000518763.1
CACNA1H	ENST00000711452.1 link	n.*1107C>A		non_coding_transcript_exon_variant	Exon 36 of 36			ENSP00000518764.1
CACNA1H	ENST00000711453.1 link	n.*1074C>A		non_coding_transcript_exon_variant	Exon 36 of 36			ENSP00000518765.1
CACNA1H	ENST00000711484.1 link	n.*354C>A		non_coding_transcript_exon_variant	Exon 34 of 35			ENSP00000518773.1
CACNA1H	ENST00000711486.1 link	n.6440C>A		non_coding_transcript_exon_variant	Exon 35 of 37			ENSP00000518775.1
CACNA1H	ENST00000711487.1 link	n.6407C>A		non_coding_transcript_exon_variant	Exon 35 of 36			ENSP00000518776.1
CACNA1H	ENST00000711488.1 link	n.*1556C>A		non_coding_transcript_exon_variant	Exon 35 of 35			ENSP00000518777.1
CACNA1H	ENST00000711483.1 link	c.*354C>A		3_prime_UTR_variant	Exon 35 of 35			ENSP00000518772.1
CACNA1H	ENST00000711456.1 link	c.*354C>A		3_prime_UTR_variant	Exon 34 of 34			ENSP00000518769.1
CACNA1H	ENST00000637236.3 link	n.*2359C>A		3_prime_UTR_variant	Exon 34 of 34	5		ENSP00000492650.2	A0A1W2PS38
CACNA1H	ENST00000639478.1 link	n.*1488C>A		3_prime_UTR_variant	Exon 35 of 35	5		ENSP00000491945.1	A0A1W2PQW2
CACNA1H	ENST00000640028.1 link	n.*4258C>A		3_prime_UTR_variant	Exon 35 of 35	5		ENSP00000491488.1	A0A1W2PQ19
CACNA1H	ENST00000711442.1 link	n.*5884C>A		3_prime_UTR_variant	Exon 33 of 34			ENSP00000518758.1
CACNA1H	ENST00000711448.1 link	n.*1381C>A		3_prime_UTR_variant	Exon 36 of 36			ENSP00000518760.1
CACNA1H	ENST00000711449.1 link	n.*1299C>A		3_prime_UTR_variant	Exon 35 of 35			ENSP00000518761.1
CACNA1H	ENST00000711451.1 link	n.*2019C>A		3_prime_UTR_variant	Exon 36 of 36			ENSP00000518763.1
CACNA1H	ENST00000711452.1 link	n.*1107C>A		3_prime_UTR_variant	Exon 36 of 36			ENSP00000518764.1
CACNA1H	ENST00000711453.1 link	n.*1074C>A		3_prime_UTR_variant	Exon 36 of 36			ENSP00000518765.1
CACNA1H	ENST00000711484.1 link	n.*354C>A		3_prime_UTR_variant	Exon 34 of 35			ENSP00000518773.1
CACNA1H	ENST00000711488.1 link	n.*1556C>A		3_prime_UTR_variant	Exon 35 of 35			ENSP00000518777.1
CACNA1H	ENST00000621827.2 link	n.6121+319C>A		intron_variant	Intron 35 of 36	6		ENSP00000518766.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

153156

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.30e-7

AC:

AN:

1370052

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

675736

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

28860

American (AMR)

AF:

0.00

AC:

AN:

30076

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20742

East Asian (EAS)

AF:

0.00

AC:

AN:

37140

South Asian (SAS)

AF:

0.00

AC:

AN:

73364

European-Finnish (FIN)

AF:

0.00

AC:

AN:

42616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5348

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1075492

Other (OTH)

AF:

0.0000177

AC:

AN:

56414

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 08, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: CACNA1H c.6440C>A (p.Pro2147Gln) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The frequency data for this variant in gnomAD is considered unreliable, as metrics indicate poor data quality at this position. To our knowledge, no occurrence of c.6440C>A in individuals affected with Idiopathic Generalized Epilepsy and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 2069974). Based on the evidence outlined above, the variant was classified as uncertain significance. -

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

Uncertain:1

Dec 06, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 2147 of the CACNA1H protein (p.Pro2147Gln). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CACNA1H-related conditions. 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. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Uncertain

0.050

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.67

D;.;.;.

Eigen

Uncertain

0.20

Eigen_PC

Benign

0.088

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.81

T;T;T;.

M_CAP

Pathogenic

0.84

MetaRNN

Uncertain

0.62

D;D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

2.9

M;.;.;.

PhyloP100

2.4

PrimateAI

Benign

0.47

PROVEAN

Pathogenic

-5.1

D;.;D;D

REVEL

Uncertain

0.31

Sift

Uncertain

0.0010

D;.;D;D

Sift4G

Uncertain

0.0020

D;.;D;D

Polyphen

1.0

D;.;D;D

Vest4

0.22

MutPred

0.30

Gain of MoRF binding (P = 0.0517);.;.;.;

MVP

0.92

ClinPred

0.98

GERP RS

4.4

Varity_R

0.33

gMVP

0.32

Mutation Taster

=58/42

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over