3-54569847-C-A
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_018398.3(CACNA2D3):c.729C>A(p.Asn243Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,054 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )
Consequence
CACNA2D3
NM_018398.3 missense
NM_018398.3 missense
Scores
2
8
8
Clinical Significance
Conservation
PhyloP100: 0.974
Genes affected
CACNA2D3 (HGNC:15460): (calcium voltage-gated channel auxiliary subunit alpha2delta 3) This gene encodes a member of the alpha-2/delta 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. Various versions of each of these subunits exist, either expressed from similar genes or the result of alternative splicing. Research on a highly similar protein in rabbit suggests the protein described in this record is cleaved into alpha-2 and delta subunits. Alternate transcriptional splice variants of this gene have been observed but have not been thoroughly characterized. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CACNA2D3 | NM_018398.3 | c.729C>A | p.Asn243Lys | missense_variant | 7/38 | ENST00000474759.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CACNA2D3 | ENST00000474759.6 | c.729C>A | p.Asn243Lys | missense_variant | 7/38 | 1 | NM_018398.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD3 exomes AF: 0.00000415 AC: 1AN: 240836Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 130460
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GnomAD4 exome AF: 6.86e-7 AC: 1AN: 1457054Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 724308
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GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 10, 2022 | The c.729C>A (p.N243K) alteration is located in exon 7 (coding exon 7) of the CACNA2D3 gene. This alteration results from a C to A substitution at nucleotide position 729, causing the asparagine (N) at amino acid position 243 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Uncertain
Dann
Uncertain
DEOGEN2
Uncertain
D;D;D;.;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
M_CAP
Benign
T
MetaRNN
Uncertain
D;D;D;D;D
MetaSVM
Benign
T
MutationAssessor
Benign
L;L;L;.;.
MutationTaster
Benign
D;D;D;D
PrimateAI
Pathogenic
D
PROVEAN
Uncertain
D;D;D;.;D
REVEL
Benign
Sift
Benign
T;T;T;.;T
Sift4G
Uncertain
D;D;D;T;D
Polyphen
P;P;P;.;.
Vest4
MutPred
Gain of ubiquitination at N243 (P = 0.023);Gain of ubiquitination at N243 (P = 0.023);Gain of ubiquitination at N243 (P = 0.023);.;.;
MVP
MPC
1.0
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
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Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at