NM_021098.3:c.3614G>C

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_021098.3(CACNA1H):​c.3614G>C​(p.Arg1205Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000256 in 1,564,102 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1205Q) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

1
3
15

Clinical Significance

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

Conservation

PhyloP100: 1.26
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18951917).
BP6
Variant 16-1209282-G-C is Benign according to our data. Variant chr16-1209282-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1023131.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1HNM_021098.3 linkc.3614G>C p.Arg1205Pro missense_variant Exon 17 of 35 ENST00000348261.11 NP_066921.2 O95180-1B3KQH9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1HENST00000348261.11 linkc.3614G>C p.Arg1205Pro missense_variant Exon 17 of 35 1 NM_021098.3 ENSP00000334198.7 O95180-1
CACNA1HENST00000565831.6 linkc.3614G>C p.Arg1205Pro missense_variant Exon 16 of 33 1 ENSP00000455840.1 O95180-2
CACNA1HENST00000638323.1 linkc.3575G>C p.Arg1192Pro missense_variant Exon 17 of 35 5 ENSP00000492267.1 A0A1W2PR14
CACNA1HENST00000639478.1 linkn.3614G>C non_coding_transcript_exon_variant Exon 17 of 35 5 ENSP00000491945.1 A0A1W2PQW2
CACNA1HENST00000640028.1 linkn.*1527G>C non_coding_transcript_exon_variant Exon 17 of 35 5 ENSP00000491488.1 A0A1W2PQ19
CACNA1HENST00000640028.1 linkn.*1527G>C 3_prime_UTR_variant Exon 17 of 35 5 ENSP00000491488.1 A0A1W2PQ19
CACNA1HENST00000637236.2 linkn.-74G>C upstream_gene_variant 5 ENSP00000492650.2 A0A1W2PS38

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152146
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000586
AC:
1
AN:
170532
Hom.:
0
AF XY:
0.0000105
AC XY:
1
AN XY:
94808
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000361
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000142
AC:
2
AN:
1411842
Hom.:
0
Cov.:
31
AF XY:
0.00000143
AC XY:
1
AN XY:
699806
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000517
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152260
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.0000481
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.0000176
AC:
2

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Epilepsy, childhood absence, susceptibility to, 6;C4310756:Hyperaldosteronism, familial, type IV Uncertain:1
Dec 28, 2023
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV Benign:1
Dec 21, 2022
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
0.083
BayesDel_addAF
Uncertain
0.016
T
BayesDel_noAF
Benign
-0.10
CADD
Benign
9.9
DANN
Benign
0.53
DEOGEN2
Benign
0.16
T;.;.;.
Eigen
Benign
-0.86
Eigen_PC
Benign
-0.95
FATHMM_MKL
Benign
0.26
N
LIST_S2
Benign
0.51
T;T;T;.
M_CAP
Pathogenic
0.61
D
MetaRNN
Benign
0.19
T;T;T;T
MetaSVM
Uncertain
-0.016
T
MutationAssessor
Benign
0.83
L;.;L;L
PrimateAI
Uncertain
0.63
T
PROVEAN
Benign
-1.1
N;.;N;N
REVEL
Benign
0.27
Sift
Benign
0.31
T;.;T;T
Sift4G
Benign
0.36
T;.;T;T
Polyphen
0.020
B;.;B;B
Vest4
0.29
MutPred
0.31
Gain of glycosylation at R1205 (P = 0.0136);.;Gain of glycosylation at R1205 (P = 0.0136);Gain of glycosylation at R1205 (P = 0.0136);
MVP
0.76
ClinPred
0.057
T
GERP RS
1.3
Varity_R
0.29
gMVP
0.63

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.

Other links and lift over

dbSNP: rs58594334; hg19: chr16-1259282; API