rs111986908

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_021098.3(CACNA1H):​c.2229G>A​(p.Thr743=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000852 in 1,611,106 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.00058 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00088 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.59
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 Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.49).
BP6
Variant 16-1204236-G-A is Benign according to our data. Variant chr16-1204236-G-A is described in ClinVar as [Benign]. Clinvar id is 529639.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-1204236-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=1.6 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000584 (89/152322) while in subpopulation AMR AF= 0.00105 (16/15308). AF 95% confidence interval is 0.000742. There are 0 homozygotes in gnomad4. There are 49 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 89 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CACNA1HNM_021098.3 linkuse as main transcriptc.2229G>A p.Thr743= synonymous_variant 10/35 ENST00000348261.11 NP_066921.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CACNA1HENST00000348261.11 linkuse as main transcriptc.2229G>A p.Thr743= synonymous_variant 10/351 NM_021098.3 ENSP00000334198 P4O95180-1

Frequencies

GnomAD3 genomes
AF:
0.000585
AC:
89
AN:
152204
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000926
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000533
AC:
128
AN:
240174
Hom.:
0
AF XY:
0.000539
AC XY:
71
AN XY:
131704
show subpopulations
Gnomad AFR exome
AF:
0.000345
Gnomad AMR exome
AF:
0.000205
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:
0.00106
Gnomad OTH exome
AF:
0.000340
GnomAD4 exome
AF:
0.000879
AC:
1283
AN:
1458784
Hom.:
0
Cov.:
32
AF XY:
0.000852
AC XY:
618
AN XY:
725632
show subpopulations
Gnomad4 AFR exome
AF:
0.000269
Gnomad4 AMR exome
AF:
0.000180
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000386
Gnomad4 NFE exome
AF:
0.00110
Gnomad4 OTH exome
AF:
0.000664
GnomAD4 genome
AF:
0.000584
AC:
89
AN:
152322
Hom.:
0
Cov.:
33
AF XY:
0.000658
AC XY:
49
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.000192
Gnomad4 AMR
AF:
0.00105
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.000926
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00109
Hom.:
0
Bravo
AF:
0.000684
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 03, 2024- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2022CACNA1H: BS1, BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.49
CADD
Benign
4.3
DANN
Benign
0.82

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: rs111986908; hg19: chr16-1254236; API