rs746446797

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_021098.3(CACNA1H):​c.6511T>C​(p.Trp2171Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000216 in 1,387,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. W2171C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000022 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

1
2
16

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.680

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: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.085768014).
BP6
Variant 16-1220443-T-C is Benign according to our data. Variant chr16-1220443-T-C is described in ClinVar as Likely_benign. ClinVar VariationId is 529556.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1HNM_021098.3 linkc.6511T>C p.Trp2171Arg missense_variant Exon 35 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.6511T>C p.Trp2171Arg missense_variant Exon 35 of 35 1 NM_021098.3 ENSP00000334198.7 O95180-1
CACNA1HENST00000569107.6 linkc.6526T>C p.Trp2176Arg missense_variant Exon 34 of 34 1 ENSP00000454990.2 H3BNT0
CACNA1HENST00000711493.1 linkc.6496T>C p.Trp2166Arg missense_variant Exon 34 of 34 ENSP00000518778.1
CACNA1HENST00000565831.7 linkc.6493T>C p.Trp2165Arg missense_variant Exon 34 of 34 1 ENSP00000455840.1 O95180-2
CACNA1HENST00000711450.1 linkc.6493T>C p.Trp2165Arg missense_variant Exon 35 of 35 ENSP00000518762.1
CACNA1HENST00000564231.6 linkc.6478T>C p.Trp2160Arg missense_variant Exon 35 of 35 1 ENSP00000457555.2 H3BUA8
CACNA1HENST00000638323.1 linkc.6472T>C p.Trp2158Arg missense_variant Exon 35 of 35 5 ENSP00000492267.1 A0A1W2PR14
CACNA1HENST00000562079.6 linkc.6460T>C p.Trp2154Arg missense_variant Exon 34 of 34 1 ENSP00000454581.2 H3BMW6
CACNA1HENST00000711438.1 linkc.6454T>C p.Trp2152Arg missense_variant Exon 34 of 34 ENSP00000518754.1
CACNA1HENST00000711482.1 linkc.6404T>C p.Leu2135Pro missense_variant Exon 36 of 36 ENSP00000518771.1
CACNA1HENST00000711485.1 linkc.6353T>C p.Leu2118Pro missense_variant Exon 35 of 35 ENSP00000518774.1
CACNA1HENST00000711455.1 linkc.6326T>C p.Leu2109Pro missense_variant Exon 36 of 36 ENSP00000518768.1
CACNA1HENST00000637236.3 linkn.*2430T>C non_coding_transcript_exon_variant Exon 34 of 34 5 ENSP00000492650.2 A0A1W2PS38
CACNA1HENST00000639478.1 linkn.*1559T>C non_coding_transcript_exon_variant Exon 35 of 35 5 ENSP00000491945.1 A0A1W2PQW2
CACNA1HENST00000640028.1 linkn.*4329T>C non_coding_transcript_exon_variant Exon 35 of 35 5 ENSP00000491488.1 A0A1W2PQ19
CACNA1HENST00000711442.1 linkn.*5955T>C non_coding_transcript_exon_variant Exon 33 of 34 ENSP00000518758.1
CACNA1HENST00000711448.1 linkn.*1452T>C non_coding_transcript_exon_variant Exon 36 of 36 ENSP00000518760.1
CACNA1HENST00000711449.1 linkn.*1370T>C non_coding_transcript_exon_variant Exon 35 of 35 ENSP00000518761.1
CACNA1HENST00000711451.1 linkn.*2090T>C non_coding_transcript_exon_variant Exon 36 of 36 ENSP00000518763.1
CACNA1HENST00000711452.1 linkn.*1178T>C non_coding_transcript_exon_variant Exon 36 of 36 ENSP00000518764.1
CACNA1HENST00000711453.1 linkn.*1145T>C non_coding_transcript_exon_variant Exon 36 of 36 ENSP00000518765.1
CACNA1HENST00000711484.1 linkn.*425T>C non_coding_transcript_exon_variant Exon 34 of 35 ENSP00000518773.1
CACNA1HENST00000711486.1 linkn.6511T>C non_coding_transcript_exon_variant Exon 35 of 37 ENSP00000518775.1
CACNA1HENST00000711487.1 linkn.6478T>C non_coding_transcript_exon_variant Exon 35 of 36 ENSP00000518776.1
CACNA1HENST00000711488.1 linkn.*1627T>C non_coding_transcript_exon_variant Exon 35 of 35 ENSP00000518777.1
CACNA1HENST00000711483.1 linkc.*425T>C 3_prime_UTR_variant Exon 35 of 35 ENSP00000518772.1
CACNA1HENST00000711456.1 linkc.*425T>C 3_prime_UTR_variant Exon 34 of 34 ENSP00000518769.1
CACNA1HENST00000637236.3 linkn.*2430T>C 3_prime_UTR_variant Exon 34 of 34 5 ENSP00000492650.2 A0A1W2PS38
CACNA1HENST00000639478.1 linkn.*1559T>C 3_prime_UTR_variant Exon 35 of 35 5 ENSP00000491945.1 A0A1W2PQW2
CACNA1HENST00000640028.1 linkn.*4329T>C 3_prime_UTR_variant Exon 35 of 35 5 ENSP00000491488.1 A0A1W2PQ19
CACNA1HENST00000711442.1 linkn.*5955T>C 3_prime_UTR_variant Exon 33 of 34 ENSP00000518758.1
CACNA1HENST00000711448.1 linkn.*1452T>C 3_prime_UTR_variant Exon 36 of 36 ENSP00000518760.1
CACNA1HENST00000711449.1 linkn.*1370T>C 3_prime_UTR_variant Exon 35 of 35 ENSP00000518761.1
CACNA1HENST00000711451.1 linkn.*2090T>C 3_prime_UTR_variant Exon 36 of 36 ENSP00000518763.1
CACNA1HENST00000711452.1 linkn.*1178T>C 3_prime_UTR_variant Exon 36 of 36 ENSP00000518764.1
CACNA1HENST00000711453.1 linkn.*1145T>C 3_prime_UTR_variant Exon 36 of 36 ENSP00000518765.1
CACNA1HENST00000711484.1 linkn.*425T>C 3_prime_UTR_variant Exon 34 of 35 ENSP00000518773.1
CACNA1HENST00000711488.1 linkn.*1627T>C 3_prime_UTR_variant Exon 35 of 35 ENSP00000518777.1
CACNA1HENST00000621827.2 linkn.6121+390T>C intron_variant Intron 35 of 36 6 ENSP00000518766.1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.0000120
AC:
2
AN:
166954
AF XY:
0.00
show subpopulations
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:
0.0000257
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000216
AC:
3
AN:
1387080
Hom.:
0
Cov.:
35
AF XY:
0.00
AC XY:
0
AN XY:
685516
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29962
American (AMR)
AF:
0.00
AC:
0
AN:
30018
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
20910
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38614
South Asian (SAS)
AF:
0.00
AC:
0
AN:
73418
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48090
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5370
European-Non Finnish (NFE)
AF:
0.00000277
AC:
3
AN:
1083646
Other (OTH)
AF:
0.00
AC:
0
AN:
57052
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.0000172
AC:
2

ClinVar

Significance: Likely 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
Dec 02, 2022
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
AlphaMissense
Benign
0.072
BayesDel_addAF
Benign
0.0047
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
1.1
DANN
Benign
0.33
DEOGEN2
Benign
0.067
T;.;.;.
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.0053
N
LIST_S2
Benign
0.41
T;T;T;.
M_CAP
Pathogenic
0.72
D
MetaRNN
Benign
0.086
T;T;T;T
MetaSVM
Uncertain
-0.15
T
MutationAssessor
Benign
-1.3
N;.;.;.
PhyloP100
-0.68
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
0.81
N;.;N;N
REVEL
Benign
0.26
Sift
Benign
0.54
T;.;T;T
Sift4G
Benign
0.37
T;.;T;T
Polyphen
0.0
B;.;B;B
Vest4
0.014
MutPred
0.21
Gain of solvent accessibility (P = 0.0137);.;.;.;
MVP
0.33
ClinPred
0.020
T
GERP RS
-1.9
Varity_R
0.064
gMVP
0.044
Mutation Taster
=97/3
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs746446797; hg19: chr16-1270443; API