rs747807971

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_021098.3(CACNA1H):​c.1895C>A​(p.Pro632His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000142 in 1,571,796 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

CACNA1H
NM_021098.3 missense

Scores

1
7
11

Clinical Significance

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

Conservation

PhyloP100: 0.910
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.25097466).
BP6
Variant 16-1202345-C-A is Benign according to our data. Variant chr16-1202345-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 569382.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.
BS2
High AC in GnomAd4 at 7 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1HNM_021098.3 linkc.1895C>A p.Pro632His missense_variant Exon 9 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.1895C>A p.Pro632His missense_variant Exon 9 of 35 1 NM_021098.3 ENSP00000334198.7 O95180-1
CACNA1HENST00000565831.6 linkc.1895C>A p.Pro632His missense_variant Exon 8 of 33 1 ENSP00000455840.1 O95180-2
CACNA1HENST00000638323.1 linkc.1856C>A p.Pro619His missense_variant Exon 9 of 35 5 ENSP00000492267.1 A0A1W2PR14
CACNA1HENST00000639478.1 linkn.1895C>A non_coding_transcript_exon_variant Exon 9 of 35 5 ENSP00000491945.1 A0A1W2PQW2
CACNA1HENST00000640028.1 linkn.1385+510C>A intron_variant Intron 9 of 34 5 ENSP00000491488.1 A0A1W2PQ19

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152216
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000457
AC:
8
AN:
174978
Hom.:
0
AF XY:
0.0000418
AC XY:
4
AN XY:
95590
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000366
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:
0.0000949
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000152
AC:
216
AN:
1419580
Hom.:
0
Cov.:
57
AF XY:
0.000144
AC XY:
101
AN XY:
702514
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000258
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:
0.000177
Gnomad4 OTH exome
AF:
0.000374
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152216
Hom.:
0
Cov.:
34
AF XY:
0.0000403
AC XY:
3
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000112
Hom.:
0
Bravo
AF:
0.0000869
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000260
AC:
3

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Sep 14, 2021
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.1895C>A (p.P632H) alteration is located in exon 9 (coding exon 8) of the CACNA1H gene. This alteration results from a C to A substitution at nucleotide position 1895, causing the proline (P) at amino acid position 632 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Idiopathic generalized epilepsy;C4310756:Hyperaldosteronism, familial, type IV Benign:1
Jan 21, 2025
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
0.10
BayesDel_addAF
Uncertain
0.098
D
BayesDel_noAF
Benign
-0.10
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.28
T;.;.;.
Eigen
Benign
-0.46
Eigen_PC
Benign
-0.64
FATHMM_MKL
Benign
0.29
N
LIST_S2
Benign
0.63
T;T;T;.
M_CAP
Pathogenic
0.43
D
MetaRNN
Benign
0.25
T;T;T;T
MetaSVM
Uncertain
0.20
D
MutationAssessor
Uncertain
2.4
M;.;M;M
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-2.5
D;.;D;D
REVEL
Benign
0.27
Sift
Uncertain
0.0010
D;.;D;D
Sift4G
Uncertain
0.0090
D;.;D;D
Polyphen
0.88
P;.;P;P
Vest4
0.36
MVP
0.74
ClinPred
0.25
T
GERP RS
1.1
Varity_R
0.22
gMVP
0.40

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: rs747807971; hg19: chr16-1252345; API