rs72934809

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBA1

The NM_006030.4(CACNA2D2):c.3349G>A(p.Val1117Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00638 in 1,567,964 control chromosomes in the GnomAD database, including 569 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.034 ( 291 hom., cov: 33)

Exomes 𝑓: 0.0034 ( 278 hom. )

Consequence

CACNA2D2
NM_006030.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.73

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:

LOC127898564 (HGNC:):

LOC127898564 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

PP2

Missense variant where missense usually causes diseases, CACNA2D2

BP4

Computational evidence support a benign effect (MetaRNN=0.0013693869).

BP6

Variant 3-50364749-C-T is Benign according to our data. Variant chr3-50364749-C-T is described in ClinVar as [Benign]. Clinvar id is 416537.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.116 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNA2D2	NM_006030.4 linkuse as main transcript	c.3349G>A	p.Val1117Ile	missense_variant	38/38	ENST00000424201.7
LOC127898564	NR_183066.1 linkuse as main transcript	n.835-1548C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNA2D2	ENST00000424201.7 linkuse as main transcript	c.3349G>A	p.Val1117Ile	missense_variant	38/38	1	NM_006030.4	P4	Q9NY47-2

Frequencies

GnomAD3 genomes

AF:

0.0341

AC:

5195

AN:

152166

Hom.:

290

Cov.:

show subpopulations

Gnomad AFR

AF:

0.118

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0145

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00124

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000294

Gnomad OTH

AF:

0.0206

GnomAD3 exomes

AF:

0.00737

AC:

1316

AN:

178616

Hom.:

AF XY:

0.00525

AC XY:

506

AN XY:

96334

show subpopulations

Gnomad AFR exome

AF:

0.117

Gnomad AMR exome

AF:

0.00430

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000317

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000136

Gnomad OTH exome

AF:

0.00433

GnomAD4 exome

AF:

0.00339

AC:

4797

AN:

1415680

Hom.:

278

Cov.:

AF XY:

0.00281

AC XY:

1969

AN XY:

700662

show subpopulations

Gnomad4 AFR exome

AF:

0.127

Gnomad4 AMR exome

AF:

0.00517

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000392

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000606

Gnomad4 OTH exome

AF:

0.00737

GnomAD4 genome

AF:

0.0342

AC:

5210

AN:

152284

Hom.:

291

Cov.:

AF XY:

0.0329

AC XY:

2449

AN XY:

74466

show subpopulations

Gnomad4 AFR

AF:

0.118

Gnomad4 AMR

AF:

0.0144

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00124

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000294

Gnomad4 OTH

AF:

0.0204

Alfa

AF:

0.00896

Hom.:

Bravo

AF:

0.0387

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.107

AC:

464

ESP6500EA

AF:

0.000588

AC:

ExAC

AF:

0.00808

AC:

954

Asia WGS

AF:

0.00635

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Athena Diagnostics

Jun 28, 2017

- -

Early infantile epileptic encephalopathy with suppression bursts

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 30, 2024

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

May 04, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.74

BayesDel_noAF

Benign

-0.74

Cadd

Benign

Dann

Benign

0.95

Eigen

Benign

-0.62

Eigen_PC

Benign

-0.42

FATHMM_MKL

Benign

0.67

LIST_S2

Benign

0.70

T;T;T;T;T;T

MetaRNN

Benign

0.0014

T;T;T;T;T;T

MetaSVM

Benign

-0.95

MutationTaster

Benign

0.74

P;P;P;P;P;P;P;P

PrimateAI

Uncertain

0.62

PROVEAN

Benign

0.19

N;N;N;N;N;N

REVEL

Benign

0.061

Sift

Benign

0.94

T;T;T;T;T;T

Sift4G

Benign

0.68

T;T;T;T;T;T

Polyphen

0.0

.;.;.;.;B;B

Vest4

0.15

MVP

0.068

MPC

0.52

ClinPred

0.013

GERP RS

2.7

Varity_R

0.025

gMVP

0.55

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over