rs766889110

chr3-53810150-G-Achr3-53810150-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2 PP2 BP4

The NM_000720.4(CACNA1D):c.6104G>A(p.Ser2035Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,654 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S2035T) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: CACNA1D NM_000720.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.53

Genes affected

CACNA1D (HGNC:1391): (calcium voltage-gated channel subunit alpha1 D) Voltage-dependent calcium channels mediate the entry of calcium ions into excitable cells, and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, and gene expression. Calcium channels are multisubunit complexes composed of alpha-1, beta, alpha-2/delta, and gamma subunits. The channel activity is directed by the pore-forming alpha-1 subunit, whereas the others act as auxiliary subunits regulating this activity. The distinctive properties of the calcium channel types are related primarily to the expression of a variety of alpha-1 isoforms, namely alpha-1A, B, C, D, E, and S. This gene encodes the alpha-1D subunit. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, CACNA1D
• BP4: Computational evidence support a benign effect (MetaRNN=0.27127266).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNA1D	NM_000720.4	c.6104G>A	p.Ser2035Asn	missense_variant	48/49	ENST00000288139.11
CACNA1D	NM_001128840.3	c.6044G>A	p.Ser2015Asn	missense_variant	47/48	ENST00000350061.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNA1D	ENST00000288139.11	c.6104G>A	p.Ser2035Asn	missense_variant	48/49	1	NM_000720.4	P2
CACNA1D	ENST00000350061.11	c.6044G>A	p.Ser2015Asn	missense_variant	47/48	1	NM_001128840.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251226 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135830

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461654 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727146

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.37
Cadd	Uncertain	24
Dann	Uncertain	1.0
Eigen	Uncertain	0.27
Eigen_PC	Uncertain	0.37
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Uncertain	0.92	D;D;.;D;D;D;D
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.27	T;T;T;T;T;T;T
MetaSVM	Benign	-0.50	T
MutationTaster	Benign	0.93	D;D;D;D
PrimateAI	Benign	0.47	T
Polyphen		0.017, 0.80, 0.038	.;B;P;P;.;.;B
Vest4		0.41, 0.40, 0.41
MutPred		0.24		.;Gain of helix (P = 0.062);.;.;.;.;.;
MVP		0.70
MPC		0.47
ClinPred		0.97	D
GERP RS		5.3
Varity_R		0.52
gMVP		0.54

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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

Other links and lift over

dbSNP: rs766889110; hg19: chr3-53844177;