chr16-1212137-G-A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_ModerateBP6_ModerateBS1BS2

The ENST00000711450.1(CACNA1H):​c.4696G>A​(p.Glu1566Lys) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000073 in 1,603,162 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 6/8 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. E1566E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000050 ( 0 hom. )

Consequence

CACNA1H
ENST00000711450.1 missense, splice_region

Scores

2
Splicing: ADA: 0.6922
2

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: 5.40

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)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.36).
BP6
Variant 16-1212137-G-A is Benign according to our data. Variant chr16-1212137-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 460123.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000295 (45/152304) while in subpopulation AFR AF = 0.00106 (44/41562). AF 95% confidence interval is 0.00081. There are 0 homozygotes in GnomAd4. There are 20 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 45 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1HNM_021098.3 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 35 ENST00000348261.11 NP_066921.2 O95180-1B3KQH9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1HENST00000711450.1 linkc.4696G>A p.Glu1566Lys missense_variant, splice_region_variant Exon 25 of 35 ENSP00000518762.1
CACNA1HENST00000348261.11 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 35 1 NM_021098.3 ENSP00000334198.7 O95180-1
CACNA1HENST00000569107.6 linkc.4758G>A p.Arg1586Arg synonymous_variant Exon 25 of 34 1 ENSP00000454990.2 H3BNT0
CACNA1HENST00000711493.1 linkc.4794G>A p.Arg1598Arg splice_region_variant, synonymous_variant Exon 25 of 34 ENSP00000518778.1
CACNA1HENST00000565831.7 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 34 1 ENSP00000455840.1 O95180-2
CACNA1HENST00000564231.6 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 35 1 ENSP00000457555.2 H3BUA8
CACNA1HENST00000638323.1 linkc.4719G>A p.Arg1573Arg splice_region_variant, synonymous_variant Exon 25 of 35 5 ENSP00000492267.1 A0A1W2PR14
CACNA1HENST00000562079.6 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 34 1 ENSP00000454581.2 H3BMW6
CACNA1HENST00000711438.1 linkc.4719G>A p.Arg1573Arg splice_region_variant, synonymous_variant Exon 25 of 34 ENSP00000518754.1
CACNA1HENST00000711482.1 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 36 ENSP00000518771.1
CACNA1HENST00000711485.1 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 35 ENSP00000518774.1
CACNA1HENST00000711455.1 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 36 ENSP00000518768.1
CACNA1HENST00000711483.1 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 35 ENSP00000518772.1
CACNA1HENST00000711456.1 linkc.4758G>A p.Arg1586Arg splice_region_variant, synonymous_variant Exon 25 of 34 ENSP00000518769.1
CACNA1HENST00000621827.2 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 37 6 ENSP00000518766.1
CACNA1HENST00000637236.3 linkn.*728G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 34 5 ENSP00000492650.2 A0A1W2PS38
CACNA1HENST00000639478.1 linkn.4696G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 35 5 ENSP00000491945.1 A0A1W2PQW2
CACNA1HENST00000640028.1 linkn.*2609G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 35 5 ENSP00000491488.1 A0A1W2PQ19
CACNA1HENST00000711442.1 linkn.*4143G>A splice_region_variant, non_coding_transcript_exon_variant Exon 24 of 34 ENSP00000518758.1
CACNA1HENST00000711448.1 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 36 ENSP00000518760.1
CACNA1HENST00000711449.1 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 35 ENSP00000518761.1
CACNA1HENST00000711451.1 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 36 ENSP00000518763.1
CACNA1HENST00000711452.1 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 36 ENSP00000518764.1
CACNA1HENST00000711453.1 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 36 ENSP00000518765.1
CACNA1HENST00000711484.1 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 35 ENSP00000518773.1
CACNA1HENST00000711486.1 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 37 ENSP00000518775.1
CACNA1HENST00000711487.1 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 36 ENSP00000518776.1
CACNA1HENST00000711488.1 linkn.4758G>A splice_region_variant, non_coding_transcript_exon_variant Exon 25 of 35 ENSP00000518777.1
CACNA1HENST00000637236.3 linkn.*728G>A 3_prime_UTR_variant Exon 25 of 34 5 ENSP00000492650.2 A0A1W2PS38
CACNA1HENST00000640028.1 linkn.*2609G>A 3_prime_UTR_variant Exon 25 of 35 5 ENSP00000491488.1 A0A1W2PQ19
CACNA1HENST00000711442.1 linkn.*4143G>A 3_prime_UTR_variant Exon 24 of 34 ENSP00000518758.1

Frequencies

GnomAD3 genomes
AF:
0.000302
AC:
46
AN:
152186
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00109
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
GnomAD2 exomes
AF:
0.0000632
AC:
15
AN:
237468
AF XY:
0.0000461
show subpopulations
Gnomad AFR exome
AF:
0.000937
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:
0.00000923
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000496
AC:
72
AN:
1450858
Hom.:
0
Cov.:
35
AF XY:
0.0000402
AC XY:
29
AN XY:
721856
show subpopulations
African (AFR)
AF:
0.000779
AC:
26
AN:
33376
American (AMR)
AF:
0.0000224
AC:
1
AN:
44544
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26050
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39650
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86112
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
45838
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4742
European-Non Finnish (NFE)
AF:
0.0000378
AC:
42
AN:
1110470
Other (OTH)
AF:
0.0000499
AC:
3
AN:
60076
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
6
12
18
24
30
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000295
AC:
45
AN:
152304
Hom.:
0
Cov.:
33
AF XY:
0.000269
AC XY:
20
AN XY:
74478
show subpopulations
African (AFR)
AF:
0.00106
AC:
44
AN:
41562
American (AMR)
AF:
0.00
AC:
0
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
3
6
8
11
14
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000120
Hom.:
0
Bravo
AF:
0.000257
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

CACNA1H-related disorder Benign:1
Feb 22, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV Benign:1
Jun 04, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.36
CADD
Benign
18
DANN
Benign
0.95
PhyloP100
5.4

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.69
dbscSNV1_RF
Benign
0.36
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

Other links and lift over

dbSNP: rs200153161; hg19: chr16-1262137; API