Genetic Variant NM_006030.4:c.3388C>G (chr3-50364710-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006030.4(CACNA2D2):c.3388C>G(p.Arg1130Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000717 in 1,394,316 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

CACNA2D2
NM_006030.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.47

Variant links:

Genes affected

CACNA2D2 (HGNC:1400): (calcium voltage-gated channel auxiliary subunit alpha2delta 2) Calcium channels mediate the entry of calcium ions into the cell upon membrane polarization. This gene encodes the alpha-2/delta subunit of the voltage-dependent calcium channel complex. The complex consists of the main channel-forming subunit alpha-1, and auxiliary subunits alpha-2/delta, beta, and gamma. The auxiliary subunits function in the assembly and membrane localization of the complex, and modulate calcium currents and channel activation/inactivation kinetics. The subunit encoded by this gene undergoes post-translational cleavage to yield the extracellular alpha2 peptide and a membrane-anchored delta polypeptide. This subunit is a receptor for the antiepileptic drug, gabapentin. Mutations in this gene are associated with early infantile epileptic encephalopathy. Single nucleotide polymorphisms in this gene are correlated with increased sensitivity to opioid drugs. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2014]

CACNA2D2 links:

ENSG00000272104 (HGNC:):

ENSG00000272104 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.11694205).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA2D2	NM_006030.4 link	c.3388C>G	p.Arg1130Gly	missense_variant	Exon 38 of 38	ENST00000424201.7	NP_006021.2	Q9NY47-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CACNA2D2	ENST00000424201.7 link	c.3388C>G	p.Arg1130Gly	missense_variant	Exon 38 of 38	1	NM_006030.4	ENSP00000390329.2	Q9NY47-2
CACNA2D2	ENST00000423994.6 link	c.3418C>G	p.Arg1140Gly	missense_variant	Exon 39 of 39	5		ENSP00000407393.2	C9JVC9
CACNA2D2	ENST00000266039.7 link	c.3394C>G	p.Arg1132Gly	missense_variant	Exon 38 of 38	1		ENSP00000266039.3	Q9NY47-3
CACNA2D2	ENST00000360963.7 link	c.3187C>G	p.Arg1063Gly	missense_variant	Exon 38 of 38	1		ENSP00000354228.3	Q9NY47-4
ENSG00000272104	ENST00000606589.1 link	c.128-1587G>C		intron_variant	Intron 2 of 3	3		ENSP00000476225.1	U3KQU4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.17e-7

AC:

AN:

1394316

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

687674

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

9.28e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.067

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.53

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0055

.;T;.;.;.;T

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.32

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.84

T;T;T;D;T;T

M_CAP

Benign

0.055

MetaRNN

Benign

0.12

T;T;T;T;T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

0.0

.;.;.;.;.;N

PrimateAI

Uncertain

0.59

PROVEAN

Benign

0.030

N;N;N;N;N;N

REVEL

Benign

0.061

Sift

Benign

0.037

D;D;T;D;D;D

Sift4G

Benign

0.17

T;T;T;T;T;T

Polyphen

0.0050, 0.0030

.;.;.;.;B;B

Vest4

0.095

MutPred

0.28

Gain of helix (P = 0.132);.;.;.;.;.;

MVP

0.043

MPC

1.0

ClinPred

0.53

GERP RS

2.7

Varity_R

0.15

gMVP

0.76

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over